题目内容

Every time you meet someone in a social situtain.

A. 对
B. 错

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As the mealis served ,use the silverware farthest from the plate first.

A. 对
B. 错

You can begin eating only when everyone has been served.

A. 对
B. 错

The head of state was welcome with full ceremony.

A. 对
B. 错

群;组;束;串;簇;群集;聚集

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