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【单选题】
在拉伸法测量杨氏模量实验中,下列做法一定可以增大光学放大法的放大倍数的是A.
减小镜尺距离,增大光杠杆常数;
B.
减少镜尺距离,减小光杠杆常数;
C.
增大镜尺距离,增大光杠杆常数;
D.
增大镜尺距离,减小光杠杆常数。
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【单选题】床上擦浴擦洗患者上肢和胸腹部时,为患者脱穿衣服的正确顺序是
A.
先穿健侧，后穿患侧
B.
先脱远侧，后脱近侧
C.
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D.
先脱健侧，后脱患侧
E.
先脱近侧，后穿远侧
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