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【判断题】
对于受挤压的表面，挤压应力不能过大，否则会发生表面塑性变形、表面压溃等，挤压强度的判定准则为：挤压应力σP应大于挤压应力[σP]。A.
正确
B.
错误
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举一反三
【单选题】What is a revolving L/C?
A.
It’s an L/C under which the payment for goods can be renewed without amendment.
B.
It’s an L/C that can be used once and for all.
C.
It’s an L/C that can be extended to purchases of other goods with other suppliers.
【单选题】Name a major advantage of a revolving L/C as compared with multiple L/Cs. ______.
A.
It saves bank charges
B.
It involves less charges
C.
The applicants for the credit wouldn't pay any commission
D.
The terms of the credit can be amended if necessary
【单选题】What is a revolving L/C?
A.
Is an L/C under which the payment for goods can be renewed without amendment.
B.
Is an L/C that can be used once and for all.
C.
It's an L/C that can be extended to purchases of other goods with other suppliers.
【多选题】抽样调查必然会出现抽样误差,减少抽样误差应注意( )。
A.
恰当地确定母体的数目
B.
恰当地确定样本的数目
C.
正确地确定抽选样本的方法
D.
正确地确定抽选样本的费用和时间
E.
加强抽样调查的组织工作，提高工作质量
【单选题】A revolving L/C can be renewed on the basis of time or ______. A. currency B. value C. unit price D. amount
A.
currency
B.
value
C.
unit price
D.
amount
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