M胆碱受体激动时的临床表现不包括()
A.心率减慢
B.腺体分泌增加
C.瞳孔括约肌和睫状肌松弛
D.支气管和胃肠道平滑肌收缩
E.肾上腺髓质释放肾上腺素
参考答案:C, E
We all feel it is Jack as well as his wife that_______for their son’s bad performance at school.
A.are to blame
B.is to be blamed
C.are to be blamed
D.is to blame
各种股捻钢丝绳在一个捻距内断丝断面积与钢丝绳总断面积之比大于和等于()时不得再用于升降物料。
A.10%
B.15%
C.20%