目前公众个人全身受照射的年剂量应低于()
A.0.5mSv
B.1mSv
C.2mSv
D.5mSv
E.10mSv
参考答案:D
—What’s the weather like in Kunming?
—It is very comfortable. too cold too hot. People like to live there.
A. Either, or B. Not only, but also C. Neither, nor
施工工法是由工艺技术和管理方法所构成的综合配套的先进施工方法。