核电厂的主要风险是（）。
A、高温高压
B、放射性泄露
C、温室气体排放
参考答案：B
Actually, anyone can be he wants to be，It doctor, a teacher ,a lawyer, a scientist or a manager so long as he sets his mind it．
A．whatever：to
B．whoever;on
C．whomever；for
D．whatever; with
果树营养贮藏的主要器官是（）。
A.果实
B.叶片
C.枝条
D.根系
