不属于酚妥拉明的药理作用为( )
A．使胃酸分泌增加
B．心收缩力减弱
C．使胃肠平滑肌张力增加
D．使外用血管阻力降低
E．竞争性阻断α受体
参考答案：B
Where is the cat? I saw it _____ in the tree just now. [ ]
A. plays
B. played
C. to play
D. playing
下列与牛顿相关的是（）①作用力与反作用力②万有引力③加速度④量子论
A.①②③④
B.①②③
C.①②
D.①②④
