下列各项，可出现金属样肠蠕动音的是（）。
A.麻痹性肠梗阻
B.机械性肠梗阻
C.低血钾
D.急性肠炎
E.败血症
参考答案：B
—Have they got their new house painted yet?
—I don't know. But I was told it ________ when I met them last week.
A．had been painting
B．would be painting
C．was painted
D．was being painted
至2014年，力争农村中小学师生、农村群众接受用电安全常识宣教率分别达到（）。
A.95%、90%
B.90%、85%
C.100%、99%
D.99%、100%
