【多选题】
冷锋是造成山东偏北大风的主要天气系统。西北冷锋影响时多出现___,北方冷锋影响时多出现( ),河西冷锋影响时多出现( )。
A. 西北大风
B. 北大风
C. 东北大风
D. 南大风
查看试卷,进入试卷练习
微信扫一扫,开始刷题
答案
ABC
解析
暂无解析
相关试题
【多选题】
山东半岛冷流降雪的成因是___。
A. 暖海面的作用
B. 较强的低空冷平流
C. 对流层中下层的湿度条件
D. 适宜的地面流场
【多选题】
黄河中下游凌汛期的封河期预报重点应考虑哪些因素___。
A. 水温
B. 气温
C. 风向风速
D. 流量
E. 淌凌日期
【多选题】
下列因素中哪些有利于雷暴的产生或增强___。
A. 较大的对流有效位能CAPE
B. 较大的对流抑制CI
C. 垂直风切变较大
D. 存在边界层辐合线
E. 低层水汽很少
【多选题】
___。
A. 速度方位显示VAD
B. 弱回波区WER
C. 组合切变CS
D. 风暴路径信息STI
E. 冰雹指数HI
F. 中气旋M
G. 回波顶ET
H. 垂直累积液态水含量VIL
【多选题】
温带气旋主要是在___发展起来的,有很大的( ),在其发展过程中,温度场位相( )气压场。
A. 暖区
B. 冷区
C. 锋区
D. 斜压性
E. 正压性
F. 超前于
G. 落后于
【多选题】
南亚高压是北半球夏季 h 层上最强大、最稳定的环流系统,它是具有___尺度的反气旋环流,是( )性高压。南亚高压下面600 hPA 以下的整个高原为( ) 控制。
A. 天气尺度
B. 行星尺度
C. 热低压.
D. 热高压
E. 冷
F. 暖
G. 300 hPa
H. 100-150 hPa
【多选题】
如果欧亚大陆极涡是两个极涡中心,且靠近我国的较强,则伴随我国持续低温天气强度是___的;若两个极涡中心强度相当接近,则我国持续低温天气强度是( )的;若亚洲极涡中心是较弱的或极涡分裂为三个中心,则我国持续低温天气强度是( )的。
A. 强
B. 弱
C. 偏强.
D. 偏弱
【多选题】
寒潮冷锋的移动方向与___有密切关系。
A. 寒潮高压的路径
B. 锋前的气压系统和地形
C. 引导冷空气南下寒潮冷锋后的垂直于锋的高空气流分量
D. 冷锋后高压的强度
【多选题】
利用Q矢量方法可以诊断___,而且只需 ( )层等压面资料即可计算。
A. 垂直运动
B. 温度场分布
C. 湿度场分布
D. 一
E. 二
F. 三
【多选题】
台风大多数发生在纬度 ___ 。
A. 0-5°N之间
B. 0-5°S之间
C. 5-20°N之间
D. 5-20°S之间
【多选题】
引起对流不稳定的局地变化的因素有___P427
A. 不稳定的垂直输送
B. 散度
C. θse平流
D. 温度平流
【多选题】
关于涡度的说法正确的是:___ P83
A. 有曲率的地区不一定有涡度
B. 有切变的地区不一定有涡度
C. 等高线密集的地方一定有涡度
D. 风大的地方一定有涡度。
【多选题】
降水成因的条件是:___
A. 水汽条件
B. 垂直运动的条件
C. 云滴增长的条件
D. 适当风速的条件
【多选题】
当西南涡移出时,雨区主要分布在:___P238
A. 低涡的中心区
B. 低涡移向的左前方
C. 低涡移向的右前方
D. 低涡移向的正前方
【多选题】
辐射雾形成必要条件:___
A. 近地层湿度大
B. 有足够的辐射冷却时间
C. 没有明显的水平或垂直交换
D. 昼夜温差较大
【多选题】
梅雨的主要水汽来源是:___ P271
A. 孟加拉湾
B. 西太平洋
C. 南海
D. 印度洋
【多选题】
影响大气的作用力中,哪些在惯性参照系中是不存在的。___天气学原理和方法6-7页
A. :气压梯度力
B. :摩擦力
C. :惯性离心力
D. :地转偏向力
【多选题】
东亚季风的特点有哪些。___ 天气学原理和方法196 页
A. 冬季盛行偏北风、偏西风,夏季偏南风、偏东风。
B. 冬季天气干冷,夏季湿热,雨量大部分集中在夏季。
C. 东亚西风带平均环流的脊、槽,在冬、夏季也完全是相反相位。
D. 高原在冬季北侧为西风,南侧为东风,夏季变为相反的风向。
【多选题】
槽线和切变线的分析要注意下列几点___天气学分析17页
A. 为了要分析槽线和切变线,一般在分析等高线之前,先根据槽线和切变线的过去位置和移动速度,从图上风饿切变定出它们的位置
B. 可以把两个槽的槽线连成一个
C. 切变线上可以有辐合中心,两条切变线可以连接在一起
D. 习惯上往往在风向气旋性切变特别明显的两个高压之间的狭长低压带内和非常尖锐而狭长的槽内分析槽线?
【多选题】
超级单体风暴的结构特征有哪些___天气学原理和方法403页
A. 云内垂直气流基本分为两部分。前部为下沉区,后部为上升区
B. 存在弱回波区
C. 风暴运动方向一般偏向于对流云中层的风的左侧
D. 对流云发展非常旺盛,维持很高的云顶
【多选题】
典型梅雨的环流特征有___ 天气学原理和方法403页
A. 南亚高压从高原向东移动,位于长江流域上空
B. 腹稿1200E处的脊线位置稳定在270N左右
C. 江淮流域有静止锋停滞
D. 低层为辐散区,高层为辐合区
【多选题】
关于冷空气的路径及对本地天气的影响,说法正确的有___天气学原理和方法303 页
A. 西来冷空气,一般无降水,经常能达到寒潮强度
B. 西北路冷空气主要是大风、降温和风后的霜冻
C. 从北来的:起先高空环流比较平直,寒潮主力是东移,在中蒙边界及东北地区形成强的东西向冷锋,降温比较厉害
D. 从东北来的:冷空气经蒙古、内蒙至山西、河北。
【多选题】
东亚夏季风环流系统中高空成员有___ 天气学原理和方法567 页
A. 澳大利亚冷性反气旋
B. 西太平洋副热带高压
C. 南亚反气旋的东部脊
D. 东亚地区向南越赤道气流
【多选题】
关于青藏高原环流影响下列说法正确的是___
A. 青藏高原在冬季是热源,在夏季是热汇
B. 青藏高原大大增强了海陆分布影响对500百帕副热带高压带的断裂作用
C. 冬季东亚大槽是海陆热力差异和青藏高原地形影响的产物
D. 冬季亚洲地面冷高压中心的位置与青藏高原影响无关
【多选题】
多普勒雷达的局限性___使其探测能力下降或受限
A. 波束中心的高度随距离增加
B. 波束中心的宽度随距离增加
C. 距离折叠
D. 静锥区的存在
【多选题】
经典超级单体风暴反射率因子回波的主要特征___
A. 低层的钩状回波
B. 中气旋
C. 中高层的悬垂回波
D. 中层的弱回波区
【多选题】
有利于强雷暴发生的条件___
A. 近地面逆温层
B. 前倾槽
C. 低层辐合和高层辐散
D. 大的风垂直切变
【多选题】
多普勒雷达测量的基本量___
A. 回波强度
B. 径向速度
C. 风廓线
D. 速度谱宽
【多选题】
多普勒雷达由___子系统组成
A. 数据采集RDA
B. 产品生成RPG
C. 用户终端PUP
D. 通讯线路
【多选题】
我国业务运行多普勒雷达通常采用的体描模式___
A. VCP11
B. VCP21
C. VCP31
D. VCP32
【多选题】
多普勒雷达的局限性___使其探测能力下降或受限
A. 波束中心的高度随距离增加
B. 波束中心的宽度随距离增加
C. 距离折叠
D. 静锥区的存在
【多选题】
层状云降水反射率因子回波的特征是___
A. 具有密实结构
B. 具有均匀纹理结构
C. 具有均匀絮状结构
D. 零度层亮带
【多选题】
经典超级单体风暴反射率因子回波的主要特征___
A. 低层的钩状回波
B. 中气旋
C. 中高层的悬垂回波
D. 中层的弱回波区
【多选题】
超级单体风暴主要产生的灾害性天气包括___
A. 大风
B. 冰雹
C. 龙卷
D. 下击暴流
【多选题】
龙卷涡旋特征TVS定义包括___
A. 切变
B. 垂直方向伸展
C. 持续叶间
D. 水平尺度
【多选题】
降水回波反射率因子回波大致可以分为哪几种类型___。
A. 阵雨回波
B. 暴雨回波
C. 积云降水回波
D. 雷阵雨回波
E. 层状云降水回波
F. 积云层状云混合型降水回波
【多选题】
灾害性天气及其次生灾害预报制作和发布规定:灾害性天气及其次生灾害落区预报每天制作和分发两次,早晨制作和发布未来(12、24、48小时)预报,下午制作和发布未来(12、24、48、72小时)预报。___
A. 12、24小时
B. 12、24、48小时
C. 12、24、48、72小时
D. 12、24、48、72、96小时
【多选题】
中短期天气预报质量检验区域范围包括预报责任区内所有___和()。
A. 预报站点
B. 预报地点
C. 预报范围
D. 预报区域
【多选题】
预计未来( )责任区内最低气温下降( )以上,最低气温为≤4℃。陆上平均风力5-7级(海区平均风力7级以上)应发布寒潮警报。___
A. 48小时
B. 24小时
C. 10℃
D. 8℃
【多选题】
温度预报的检验包括( )、( )、( )的预报误差。___
A. 最高气温
B. 最低气温
C. 平均气温
D. 定时气温
推荐试题
【单选题】
Q2: What is the actual reason that Katy doesn’t want to attend Jason’s party?___
A. None of her friends likes Jason .
B. None of Jason's guests is young .
C. She wants to go to Linda's party ..
D. She went to Jason's party last year .
【单选题】
Q3: What is special about Linda’s party?___
A. The party will last four hours .
B. Six people will attend the party .
C. They will have huge bags of candy .
D. They will play a new game called "GuessWho ".
【单选题】
Q4: What will Katy do to solve her problem?___
A. Go to Jason's party .
B. Go to Linda's party .
C. Attend both Jason's and Linda's parties .
D. Celebrate Halloween with her parents .
【单选题】
Q1: What is special about this year’s Black Friday shopping?___
A. Some stores offered bigger holiday discounts .
B. Some stores provided more choices of nightlife.
C. Some stores made efforts to attract young people .
D. Some stores opened much earlier than they used  to .
【单选题】
Q2: Why did some stores open at midnight on Thanksgiving night?___
A. To attract young customers .
B. To beat other stores for sale.
C. To let people sleep late the next day .
D. To keep people stay up for the night .
【单选题】
Q3: How many Black Friday shoppers were reported to go to the shops at midnight this year?___
A. 24 percent .
B. 37 percent .
C. 9.5 percent .
D. 23.5 percent .
【单选题】
Q4: What can we learn about the 15-year-old Jenny?___
A. She and her cousins went back home at midnight .
B. She liked the traditional 4 a.m. Black Friday.
C. She preferred midnight shopping to early  morning shopping .
D. She and her cousins got up very early to buy  discounted items .
【单选题】
Q1: Why did the woman decide to do a triathlon?___
A. Because she did it in college .
B. Because she wanted to be tough .
C. Because her sister did it and liked it .
D. Because her sister said it was good for her .
【单选题】
Q2: When did the man first do a triathlon?___
A. Last year .
B. In college .
C. Last week .
D. In high school .
【单选题】
Q3: How does the man feel about running?___
A. Boring.
B. Scaring .
C. Exciting .
D. Interesting .
【单选题】
Q4: Why doesn’t the woman like swimming in the triathlon?___
A. Because she fears that a big fish might eat  her .
B. Because she fears that she would get lost in  lakes .
C. Because she doesn't want to scare away  small fishes .
D. Because she doesn't like swimming with  many people .
【单选题】
Q1: What is the ratio of positive to negative emotions that can make a person happier?___
A. 1:3.
B. 3 :1.
C. 1 :10 .
D. 10 :1.
【单选题】
Q2: What is the most exciting finding about increasing positive emotions?___
A. It improves relationships .
B. It leads to greater success .
C. It helps develop creativity .
D. It contributes to good health .
【单选题】
Q3: What does the speaker say about negative feelings?___
A. People should turn every negative feeling  around .
B. Negative feelings can sometimes have  positive effects .
C. Negative feelings often cause people to  make mistakes .
D. People should never show negative feelings  in public places .
【单选题】
Q4: What is the main idea of the passage?___
A. People should learn to manage their  emotions .
B. People should be patient with their  negative feelings .
C. People should learn to analyze causes of  unhappiness .
D. People should identify as many positive  feelings as possible .
【单选题】
Q1: What are the man and woman talking about?___
A. Whether nature is magical and kind .
B. Whether nature is powerful and full of risks .
C. Whether Christopher was well prepared for the trip .
D. Whether Christopher's trip to Alaska was  worthwhile .
【单选题】
Q2: What can we learn about Christopher?___
A. He made a film about his trip to Alaska .
B. He wrote a story about his trip to Alaska .
C. He died while having an adventure in Alaska .
D. He learned how powerful and risky Alaska was .
【单选题】
Q3: What does the woman think about Christopher taking the trip to Alaska?___
A. He was too foolish .
B. He was really romantic .
C. He had a very kind heart .
D. He had a spirit for trying things .
【单选题】
Q4: Which of the following is NOT mentioned as something that would have saved Christopher’s life?___
A. A gun to hunt .
B. The map of the area .
C. Emergency food supplies .
D.
E. mergency communication equipment .
【单选题】
Q1: What speed can an avalanche reach within five seconds of taking off?___
A. At 8 miles an hour .
B. At 18 miles an hour .
C. At 80 miles an hour .
D. At 88 miles an hour .
【单选题】
Q2: According to the passage, under what circumstances may an avalanche occur?___
A. There are too many layers of snow on the  .
B. There is a layer of snow covering an entire  area .
C. The top layer of snow slides off the layer  below it .
D. The layer of snow below the surface  becomes unstable .
【单选题】
Q3: What are skiers advised to do to avoid being caught in an avalanche?___
A. Ski only in the official ski areas .
B. Look for solid snow to walk on .
C. Look out for each other while skiing .
D. Learn to control themselves in an  avalanche .
【单选题】
Q4: Why does the ski patrol use explosives?___
A. To dig holes in the snow .
B. To close the area for skiing .
C. To make an avalanche move on purpose .
D. To' check how different layers are holding  up .
【单选题】
Q1:What is conversation mainly about?___
A. The woman's happy college life the  man's doubt .
B. The woman's spending habits and the  man's concerns .
C. The man's reminding the woman of the  exam this Thursday .
D. The man's support for the woman over the  past 15 years .
【单选题】
Q2:What did the woman do last night?___
A. She bought a new leather coat .
B. She studied very hard for an exam .
C. She treated all her friends to dinner .
D. She went to a concert with her friends .
【单选题】
Q3:Where did the woman get the money?___
A. She just received her student loan .
B. She saved some money for herself .
C. She borrowed the money from her friends .
D. She asked her mom to send her the money .
【单选题】
Q4:What is the man?___
A. A teacher of biology .
B. An undergraduate student .
C. A freshman in biology class .
D. A graduate teaching assistant .
【单选题】
Q1: What is this passage mainly about?___
A. How businesses can compete with each  other .
B. How small businesses operate during  holidays .
C. How small businesses manage holiday  workers .
D. How can earn more money  during holidays .
【单选题】
Q2: According to Rubin, what can small companies do to thank holiday workers?___
A. Have talks with their families .
B. Give them good extra benefits .
C. Offer them expensive holiday tokens .
D. Show appreciation to them face to face .
【单选题】
Q3: What can small business owners do to help holiday workers get into the holiday spirit?___
A. Entertain them with big meals .
B. Let them enjoy some holiday games .
C. Give them handmade thank-you cards .
D. Send their families some holiday gift cards .
【单选题】
Q4: Who are supposed to benefit most from this passage?___
A. Workers who have to work during  holidays .
B. Employees who intend to earn extra  money .
C. Big companies that usually close on  holidays .
D. Small businesses that try to be more  competitive .
【单选题】
In the first two paragraphs of the passage the writer tries to tell us that___
A. he had lived in Washington D.C. for twenty years
B. he was very imaginative when he was a child
C. he had fond memories of his old neighborhood
D. )he had come from a very poor neighborhood
【单选题】
The writer ,as a child ,was very fond of playing in the basement because ___
A. it was bright and alive
B. it contained a movie house and a space station
C. it was ideal for playing hide-and-seek
D. it was surrounded by trees and flowers
【单选题】
How did the writer feel when he visited his old neighborhood in Washington D.C. ?___
A. Greatly surprised .
B. Very regretful .
C. Quite excited .
D. Very sad .
【单选题】
On his visit to his hometown ,the writer found the old apartment building___
A. see medunfit to live in
B. had been repaired
C. could hardly be recognized
D. looked dirty and smelt horrible
【单选题】
" Youcan never go home again "inthe last sentence of this passage means that___
A. one should never revisit his hometown after many years of absence
B. one will never find his hometown the same as it was in his childhood memory
C. avisit to one's hometown will bring back one's fond memories of home
D. avisit to one's hometown will bring back many sad memorie
【单选题】
We learn from the passage that Tracy died___
A. on December 8,1992
B. of brain damage
C. 24 hours after he fell off the roof of a car
D. in a car crash
【单选题】
Tracy's parents decided to donate Tracy's organs because___
A. Tracy told them to do so just before he died
B. they wanted to save others the pain of seeing a dear one die
C. David's life could continue in a meaningful way
D. they knew David was suffering from a hopeless liver disease
【单选题】
The meeting between the writer's family and Tracy's parents was arranged because___
A. the writer and her husband wished to express their thanks to Tracy's parents 
B. the local organ bank wanted to see how both families felt about the donation 
C. Tracy's parents wanted to see someone whose life had been saved by the donation
D. the two families were linked by the most bittersweet ties imaginable
【单选题】
The writer and her husband learned how Tracy died___
A. from his parents
B. from the organ bank
C. from the hospital
D. from the doctor who performed the operation