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问题 单项选择题

有关标准姿势的叙述，错误的是（）.

A.人体直立

B.掌心向前

C.两眼向前方平视

D.双上肢下垂置躯干两侧

E.两下肢并拢，足尖外展

答案

参考答案：E

单项选择题

在浮选机中，带有进浆管的抽吸槽称为（）。

A、直流槽 

B、吸入槽 

C、平流槽
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选择题
This is one of the most interesting films _____ shown last week. 
A. which was
B. that was
C. which were
D. that were
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