单项选择题

The old man walked slowly,stopping()fbquently.

A.on rest
B.at rest
C.resting
D.to rest

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单项选择题
腹部和下肢手术适用的麻醉方式是 A.表面麻醉 B.蛛网膜下腔麻醉(腰麻) C.浸润麻醉 D.传导麻醉 E.硬脊膜外麻醉
A.表面麻醉
B.蛛网膜下腔麻醉(腰麻)
C.浸润麻醉

D.传导麻醉
单项选择题
下列何种效应与激动M受体无关( ) A.瞳孔缩小 B.膀胱收缩 C.心脏兴奋 D.唾液腺分泌增加 E.血管舒张
A.瞳孔缩小
B.膀胱收缩
C.心脏兴奋
D.唾液腺分泌增加
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