【单选题】
发动机汽缸的修复方法可用___。
A. 电镀法
B. 喷涂法
C. 修理尺寸法
D. 铰削法
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答案
C
解析
暂无解析
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1.The cook put the meat on a plate, _________it with salt and pepper, wrapped up the plate in aluminum foil铝箔 and then placed it in the oven to roast.
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5.Because the Earth is a sphere, sailors _________only can view other ships to a distance of about 13 miles before those ships seem to disappear into the horizon.
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7.One tends to believe whatever one repeats to oneself sufficiently often, whether the _________be true or false.
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9.I don’t know what my roommate is up to because he does everything _______________, either when I am away or when I am asleep.
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10.For economic reasons, shipbuilders have designed vessels___ that can be loaded and _________in a minimum amount of time with minimum labor.
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12.A national debate is now _________about the manner in which we as a society should protect our natural resources.
【单选题】
关于凹版印刷说法错误的是___。
A. 印出的文字或图案立体感强,层次分明
B. 用手触模有明显凹凸感
C. 多使用于护照的封二或封三页的说明词、花纹图案,或贴纸签证的顶部和边框中
D. 图文边缘呈锯齿形
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下列情况中,装订线不一定是经过拆装的是___。
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关于激光全息塑封膜,说法错误的是___ 。
A. 动态地变换护照资料页的角度,膜上的图案会逐一显现但不是全部展现
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关于硬卡膜,说法错误的是___。
A. 由多层塑料材料层压复合而成
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