【判断题】
全面小康，覆盖的人口要全面，是惠及全体人民的小康。全面小康，覆盖的区域要全面，是城乡共同发展的小康。
A. 对
B. 错
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答案
A
解析
暂无解析
相关试题
【单选题】
如果将额定电压为220/36V变压器接入220V的直流电源，将发生什么现象？ （）
A. 输出电压低于36V
B. 36V的直流电压
C. 输出36V电压，一次侧绕组过热
D. 没有电压输出，一次侧严重过热而烧坏
【单选题】
电力变压器利用电磁感应原理将（）。
A. 一种电压等级的交流电转变为同频率的另一种电压等级的交流电
B. 一种电压等级的交流电转变为另一种频率的另一种电压等级的交流电
C. 一种电压等级的交流电转变为另一种频率的同一电压等级的交流电
【单选题】
关于电力变压器能否转变直流电的电压，下列说法中正确的是（）。
A. 变压器可以转变直流电的电压
B. 变压器不能转变直流电的电压
C. 变压器可以转变直流电的电压，但转变效果不如交流电好
D. 以上答案皆不对
【单选题】
一台三相变压器的额定容量SN=3200KVA，额定电压为U1N/U2N=35/10.5KV其一次侧额定电流为（）A。
A. 52.8
B. 91.4
C. 304.8
D. 380
【单选题】
下列关于变压器的说法错误的是：
A. 变压器有升压变压器和降压变压器两种
B. 原、副边的电压比与原副边的数比相等
C. 原、副边的电流比与原副边的数比相等
D. 原、副边的阻抗比与原副边的数的平方比相等
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