哪项不是致病因子中致病能力的决定因素A．致病因子的毒性 B．致_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

哪项不是致病因子中致病能力的决定因素

A．致病因子的毒性

B．致病因子的毒力强弱

C．致病因子的剂量或浓度

D．致病因子进入体内后的变化规律

E．致病因子所在的环境

答案

参考答案：E

补全对话，情景问答

阅读下面对话，从方框内7个选项中选择5个恰当的句子完成此对话，并将其序号填入题前括号内。

A. I've gone to a paper factory.
B. That would be fine.
C. That's terrible!
D. Yes, of course.
E. Good idea!
F. The river has become very dirty.
G. I've been to a paper factory.

A: Where have you been, Fang Li ? I called you, but you weren't in your office.
B: 1.
A: What did you do there?
B: I found out that the factory was pouring waste water into the river near it. 2.            Lots of fish have died.
A: 3.
B: Do you think "Greener China" can do something?
A: 4.             We can write a story about it to the TV station and the newspaper.
B: 5.               Businessmen are afraid of newspapers and TV stations.

单项选择题

好的课堂导入可以引起学生的（）。

A．对教学关注度

B．学习气氛

C．注意力

D．学习兴趣