生活因素是致病的条件，下列不是妇女疾病主要致病因素的是（）
A.房劳多产
B.饮食失节
C.劳逸过度
D.跌仆损伤
E.工作环境
参考答案：E
—The head teacher said we had only three days to finish the project.
—Don't worry. We have already ________ two thirds of it.
A．taken over
B．given away
C．made up
D．got through
塑料材料的韧性宏观上从哪些方面表征？
