[多项选择]肩关节旋转运动器的用途（）
A. 训练肩关节活动度
B. 增加肌力
C. 增加心肺功能
D. 增加耐力
E. 帮助上肢的控制性训练

[填空题]接触网支柱__（ ）___米范围内的基坑、电缆沟开挖等作业属于邻近营业线B类施工。

[简答题]“两个维护”是指什么?

[单选题]SF6断路器年漏气率不大于(____)%。
A.1
B.2
C.3
D.4

[多选题]在吊装作业中所需桅杆的高度取决于设备就位前的 ( )和应留的安全裕度等。
A.吊装高度
B.滑车组在收紧状态下的最小长度尺寸
C.吊索长度
D.桅杆倾斜后吊升高度的减小量

[单选题]"集团公司体制机制改革，逐步建立（）级管理架构。
A.五
B.四
C.三
D.二"

[填空题]能的最普通的形式是（），它是一个系统中分子热运动的功能。

[判断题]担任因违法被吊销营业执照的公司的法定代表人，并负有个人责任的，自该公司被吊销营业执照之日起未逾5年的，不得担任公司的董事、监事、经理。 ( )

[单选题]紧固直线上钢轨接头6孔螺栓,正确的操作是( )。
A. 先上紧最外侧两条螺栓,再上紧中间两条螺栓,剩下两条最后上紧
B. 先上紧中间两条螺栓,再上紧最外侧两条螺栓,剩下两条最后上紧
C. 先上紧中间两条螺栓,其余4条依次上紧
D. 先上紧最外侧两条螺栓,再上紧次外两条螺栓,最后上紧中间两条螺栓

[单选题]易产生焊缝固体夹渣缺陷的原因是( )。
A.焊缝布置不当;
B.焊前未加热;
C.焊接电流太小;
D. 焊后冷却快

[单选题]在甲醇实际精馏生产中,提高常压塔回流槽的压力,加压塔塔顶压力将( )
A.降低
B.升高
C.不变
D. 二者没有关系

[单项选择]《中华人民共和国义务教育法》首次颁布的时间是（）。
A. 1985年
B. 1986年
C. 1990年
D. 1993年

[单项选择]

Some people seem to think that sports and games are unimportant. They like to watch TV at home, go to the cinema, or sleep. (21) in fact sports and games can be (22) great value, especially to people who work with their brains (23) of the day.
Sports and games should not be treated only as amusements (娱乐活动). They can (24) our bodies, prevent us (25) getting too fat, and keep us healthy. But these are not their only uses. They give us valuable practice (26) helping the eyes, brain and muscles (肌肉) to work together. In table tennis, the eyes can see the ball (27) , judge its speed and direction, and pass this information (28) to the brain. The brain then has to decide what to do, and sends its orders to the muscles of the arms, legs, and so on, (29) the ball is met and hit back (30) the player wants it to go. All this must happen (31) a very quick speed, and only those (32)
A. However
B. But
C. Otherwise
D. Therefore