题目内容

动量守恒定律是矢量表达式,使用时要注意正方向的选取。

A. 对
B. 错

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请用括号里面提供的单词的合适形式填空:The children ____ enjoyed themselves at the Maker Faire in New York.( thorough)

Below is a list of ____ who can turn out custom laser-cut designs and circuit boards.(manufacture)

Roger likes reading; he is an ____member of the local book club.( act)

As a small country, it had to take a new road to its____.(industrialize)

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