选择题：Compounds are different from free phrases in all t

题目内容：

Compounds are different from free phrases in all the following ways EXCEPT _______.( )(本题4.0分)
A. semantics
B. grammar
C. phonetics
D. lexicology

参考答案：

With a lot of difficult problems _____, the newly-

With a lot of difficult problems _____, the newly-elected president is having a

参数是指( )(本题2.0分)A. 参与个体数B. 总体中研究对象的总和C. 样本的统计指标D. 总体的统计指标

33.对于软齿面的闭式齿轮传动,主要的失效形式是(本题2.0分)A. 轮齿疲劳折断B. 齿面磨损C. 齿面点蚀

12.能把转动运动转变成往复摆动运动。(本题2.0分)A. 曲柄摇杆机构B. 双曲柄机构C. 双摇杆机构D. 曲柄滑决机构

20— You look tired. What.s the matter?—____________ ( )(本题5.0分) A、 It doesn.t m