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搜题
【单选题】
Why did the measures of theft prevention turn into the convenience for a burglar in the fable Theft Prevention?A.
Because the rope knot and chest were not good enough
B.
Because the burglar had known that the case was filled with treasure
C.
Because the case was neatly packaged and perfect for the burglar to carry
D.
Because the burglar was able to open the case without making any noise
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【多选题】铣床工作台面的平面度精度超差时对加工的影响有( )。
A.
工件平面度精度
B.
影响工件的位置精度
C.
加工工件尺寸不稳定
D.
加工工件表面粗糙度值大
E.
以工作台面定位夹紧易使工件变形
【简答题】hnRNA 是 ______________ 的前体 。