伴有肾功能不全的高血压病人最好选用的降压药是（）
A.氢氯噻嗪
B.利血平
C.可乐定
D.α-甲基多巴
E.硝普钠
参考答案：D
— What do you think of the meal we have just had?
— It is well worth ______ is charged for it.[ ]
A. that
B. what
C. which
D. how many
AK-47口径为（）。
A.7.62mm
B.60mm
C.70mm
D.20mm
