题目内容

When scheduling an activity, the writer usually (logs) it into his agenda.

A. 对
B. 错

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Generally, Americans will not wait long, ten minutes (at most).

A. 对
B. 错

When Ameracans plan an event, they usually set the time days, a week or even a month (in advance).

A. 对
B. 错

The passage is written for people who are (new to) American behavior around appointments and punctuality.

A. 对
B. 错

柔性体约束的约束反力,其作用线沿柔索的中心线( )。

A.其指向在标示时可以先任意假设
B.其指向在标示时有的情况可任意假设
C.其指向必定是背离被约束物体
D.其指向也可能是指向被约束物体

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