开放型问题
参考答案：
记者仅提示某一话题或访谈范围，让采访对象自由发挥。
用血涂片检查，主要可诊断哪些寄生虫病？请写出能查见的寄生虫阶段。
The money -weighted return also is known as the:（）
A. perfect return for a portfolio.
B. internal rate of return (IRR) of a portfolio.
C. measure of the compound rate of growth of $1 over a stated measurement period.
