传染性非典型肺炎的密切接触者应隔离观察()
A.30天
B.28天
C.14天
D.7天
E.21天
参考答案:C
— Anything to drink? What about coffee?
— Er… I think I’ll have a cold drink coffee.
A.rather than
B.more than
C.less than
D.other than
可以在开启的紫外灯下工作。