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【判断题】
编制好的程序必须经过校验和试切才能用于正式加工;当首件试切有误差时,应分析产生原因并加以修改。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】在同一个平面内不相交的两条线段叫平行线．______．（判断对错）
【简答题】Fi ll in the blanks in the following sentences. This is not an ordinary family quarrel. The argument between the husband and wife concerns the correct attitude toward 1 . The author was born in 1945 a...
【简答题】Sometimes, the st ideas are the best. For example, to absorb heat from the sun to heat w ater, you need large, flat, black suces. One way to do that is to build those suces specially, on t...
【简答题】同一平面内不相交的两条线，叫做平行线．______．
【单选题】S1:M.V. Helper, this is M.V. Blue Whale. What is the result of search? Over.S2:M.V. Blue Whale, this M.V. Helper. Sighted persons in water in position 47°N 050°W. Over.S1:M.V. Helper, this is M.V. Bl...
A.
Good.
B.
Quite Good.
C.
Not bad.
D.
Bad.
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