加工贸易备案时需要提供许可证的是( )。
A．进口工业废料
B．进口地图产品
C．进口音像制品
D．易制毒化学晶
参考答案：D
某单位《普法知识问答》的总平均分为87分，男同志的平均分为85分，女同志的平均分为90分，问此单位的男、女比例是多少（）
A．
B．
C．
D．
How much should an investor have in a retirement account on his 65th birthday if he wishes to withdraw $ 40000 on that birthday and each of the following 14 birthdays, assuming his retirement account is expected to earn 14.5 percent（）
A. $ 234422.
B. $ 274422.
C. $ 272977.
