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【单选题】
共阳极数码管的8个LED( )连接在一起,作为公共控制端。
A.
阳极
B.
阴极
C.
阳极和阴极
D.
阴极和阳极
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【简答题】W : To be frank, it would be very difficult for us to market your product at the price offered. M : 1 the world market. It’s workable. W: We have been approached by other suppliers 2 lower than yours....
【单选题】The probable title of this passage is
A.
Crime Rate Is on the Decline.
B.
Prevention Measures Take a New Look.
C.
Community Reconstruction.
D.
A Better Way to Spend Money.
【单选题】The writer points out that writing and discussion on crime prevention ______.
A.
are not based on facts and not systematic
B.
involve profound thinking
C.
are ideological and scientific
D.
are not explicitly expressed
【单选题】钻孔灌注桩灌注水下混凝土,在桩顶设计标高以上加灌一定高度,其作用是()。
A.
避免导管漏浆
B.
防止桩身夹泥断桩
C.
保证桩顶混凝土质量
D.
放慢混凝土灌注速度
【简答题】Make a short video of auction in group , the video should last at least one minute. The goods for auction can be chosen from the Yard Sale you made last week. The useful expression for auctions are ? ...
【单选题】钻孔灌注桩灌注水下混凝土,在桩顶设计标高以上加灌一定高度,其作用是( )。
A.
避免导管漏浆
B.
保证桩顶混凝土质量
C.
桩身夹泥断桩
D.
放慢混凝土灌注速度
【单选题】钻孔灌注桩灌注水下混凝土,在桩顶设计标高以上加灌一定高度,其作用是?
A.
避免导管漏浆
B.
桩身夹泥断桩
C.
保证桩顶混凝土质量
D.
放慢混凝土灌注速度
【简答题】When I was a little girl, I found love in a box all because of a class assignment. On a Friday night I 36 at the dinner table, “My teacher said we have to bring a box, a special box, for our valentine...
【单选题】河床中的巨大石块、砾石和砂,随着河水的流动在河床底以滚动、滑动或跳跃的方式移动,称为()。
A.
悬运
B.
推运
C.
溶运
【单选题】汉乐府诗中有一篇表现了普通百姓因为饥寒交迫,走投无路,被逼上反抗道路的作品,它是( )。
A.
《东门行》
B.
《妇病行》
C.
《孤儿行》
D.
《十五从军征》
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