肼屈嗪和下列哪种药物合用既可增加降压效果又可减轻心悸的不良反应：
A．二氮嗪B．哌唑嗪C．米诺地尔D．氢氯噻嗪E．普萘洛尔
参考答案：E
In the office I never seem to have time until after 5：30 pm, _____ many people have gone home.
A．that
B．which
C．whose time
D．by which time
下列食物可以放心食用的是（ ）
A．洗净的新鲜水果
B．发芽的马铃薯块
C．发霉的面包
D．色彩鲜艳的蘑菇
