（），会使万能磨床磨削工件表面出现螺旋线。A、砂轮主轴与轴承

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问题多项选择题

（），会使万能磨床磨削工件表面出现螺旋线。

A、砂轮主轴与轴承之间间隙过大

B、砂轮修正不良

C、磨头电动机振动

D、机床安装水平超差

E、工件主轴与轴承之间间隙过大

答案

参考答案：B, D

阅读理解

阅读短文选择正确答案。

My name is Tom. I have a new friend. My friend is a girl. Her name is Mary. She is thin. She has long hair,

big eyes and ears. She has a small nose and a small mouth She is cute.

1. Tom has a ___________ friend.

A. new

B. old

C. now

2. Tom's friend is ___________.

A. Ann

B. Mary

C. Jane

3. Mary is ___________.

A. thin

B. strong

C. tall

4. Mary has ___________ hair.

A. long

B. short

C. small

5. Mary has a ___________ nose and a ___________ mouth.

A. small, big

B. big, small

C. small, small

单项选择题

MMPI-2的89/98两点编码多表现为活动过度、精力充沛、情绪不稳、不现实及夸大妄想者，常被诊断为( )。

A．抑郁性神经症

B．偏执性人格

C．精神分裂症

D．反社会性人格