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【判断题】
施工图主要采用的是正投影法绘制。A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【简答题】There are some unique problems in international trade and companies doing business overseas must be aware of them.
【单选题】在对回归系数显著性进行检验时使用t检验，经验表明，当( )时，t分布较为稳定，检验较为有效。
A.
n≥k
B.
n≥k+1
C.
n-k≥8
D.
n≥30或n≥3(k+1)
【单选题】— Do you have any problems _______ your English? — No, I don’t. But I have some maths problems _______.
A.
on, to solve
B.
with, solving
C.
on, solving
D.
with, to solve
【单选题】Written applications should be sent to us in case ______ some problems with the electronic version.
A.
there will be
B.
there is
C.
there be
D.
there was
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