下周即将休产假，不知产假期间是否需要缴纳社保？怎么缴？
参考答案：
产假期间也是需要缴纳社保的，其中个人缴费部分可由单位代扣代缴。
There are many places in the world ________ have been visited only by a few, many ________ are
of an enormous beauty.[ ]
A. where; of which
B. which; of whom
C. that; of which
D. that; of whom
热射线落在物体上时，被反射的能量与总量之比值称之为（）。
A.反射率
B.吸收率
C.透射率
