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【单选题】
万向传动装置的作用是( )。
A.
在相对位置经常变化的两轴间传递动力
B.
在轴线相交的两轴间传递动力
C.
在一对轴线相交且相对位置经常变换的转轴间实现动力传递
D.
任意位置两轴间传递动力
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观察生命体征、腹部和尿液情况
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建立静脉通道、补液与止血
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绝对卧床休息,避免下床活动
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A.
显示一个白色灯光
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B.
If people want what they deserve, they have to ask for it.
C.
People should not be content with what they have got.
D.
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查看完整题目与答案