The government is trying to reduce people’s fear _________ they are likely to be affected by  the nuclear radiation.

A．whether

B．what

C．that

D．how

正常新生儿生理性体重下降的时间和程度是（）

A.生后一周内暂时性体重下降10～15%

B.生后一周内暂时性体重下降9%

C.生后1～2周内暂时性体重下降10%～15%

D.生后1～2周内暂时性体重下降9%

E.生后7～10天内暂时性体重下降10%