下列哪项不属于胎盘功能检查
A．孕妇尿雌三醇测定B．CST试验C．尿β-HCGD．血清胎盘生乳素值E．血清催产素酶值
参考答案：C
Which of the following is a limitation to fully efficient markets（）
A. The gains to be earned by information trading can be less than the transaction costs the trading would entail.
B. In general, for securities with smaller transaction costs, the deviations from informationally efficient prices are greater than for securities with larger transaction costs.
C. There are no limitations to fully efficient markets because the trading actions of fundamental and technical analysts are continuously keeping prices at their intrinsic value.
江河取水构筑物的防洪标准不应( )城市防洪标准，其设计洪水重现期不得低于( )。
A．低于；100年 B．低于；50年 C．高于；100年 D．高于；50年
