β1受体阻断药()
A.酚妥拉明
B.肾上腺素
C.阿替洛尔
D.拉贝洛尔
E.普萘洛尔
参考答案:C
A good story does not necessarily have to have a happy ending, but the reader must not be left______. [ ]
A. unsatisfied
B. unsatisfying
C. to be unsatisfying
D. being unsatisfied
对于钢筋混凝土基础,在进行底板配筋计算时,计算控制截面取在( )。
A.基础边缘
B.基础上墙体边缘
C.基础中心
D.墙体中心线