环境生物标志的种类分为（）。 A.暴露生物标志 B.效应生物标志

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问题多项选择题

环境生物标志的种类分为（）。

A.暴露生物标志

B.效应生物标志

C.易感性生物标志

D.发病生物标志

E.早期生物标志

答案

参考答案：A, B, C

阅读理解

Liu Yu
His dream	Tobe a (1) _____ .
His parents’ opinion	He needs to be (2) _____and needs to think about what will happen if he doesn’t make it.
Liu Yu’s opinion	He should be allowed to (3) _____ for himself taught him.
What his parents has always	(4) _____.
When his parents don’t allow him to practice running	(5) _____.

问答题

论述埃里克森的人格发展阶段理论及其教育含义。