布美他尼属于下列哪类利尿药()
A.强效利尿药
B.中效利尿药
C.保钾利尿药
D.碳酸酐酶抑制药
E.渗透性利尿药
参考答案:A
电磁波传播的速度是()。
A.3×109m/s
B.3×108m/s
C.3×107m/s
D.3×106m/s
E.3×105m/s
Although it was obvious that his friend had cheated him, he her. He was a bit out of control himself.
A.shouldn’t hit
B.shouldn’t have hit
C.mustn’t hit
D.mustn’t have hit