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【单选题】
关于关节活动范围和稳定性的描述,错误的是:A.
关节运动轴越多，关节就越灵活
B.
关节囊越紧，关节越稳定
C.
两关节年面积差越大，关节越稳定
D.
关节唇和滑膜襞能增强关节的稳定性
E.
关节盘和滑液增强关节的灵活性
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知识点：
皮皮学刷刷变学霸
举一反三
【简答题】Diaphragm valves use a flexible and to regulate flow. The handwheel operates just like the handwheel on valve. The is attached to a device called the . The compressor pushes on a flexible diaphragm. T...
【简答题】The party( )very well, thanks.
【多选题】关于阿司咪唑的描述正确的是
A.
为丙胺类H1受体拮抗剂
B.
在体内经代谢转化为活性药物
C.
对中枢神经系统渗透性很差，无嗜睡作用
D.
长效抗过敏药
E.
无局部麻醉作用和抗胆碱作用
【判断题】Generally pressure drop across the body of the nonweir diaphragm valves is larger than that of weir diaphragm valves.
A.
正确
B.
错误
【简答题】Diaphragm valves do not use .
【单选题】-- Well, thanks very much. -- _________.
A.
My pleasure
B.
No thanks
C.
It doesn't matter
【判断题】Diaphragm valves are mechanical valves that prevent reverse flow in piping
A.
正确
B.
错误
【单选题】Well, thanks very much for_________ my talk. Are there any questions?
A.
listening to
B.
looking at
C.
hearing to
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