柳氮磺胺吡啶（SASP）治疗溃疡性结肠炎的机制是（） A.降低肠道_爱下问搜题

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问题单项选择题 A1/A2型题

柳氮磺胺吡啶（SASP）治疗溃疡性结肠炎的机制是（）

A.降低肠道酸度，促使溃疡愈合

B.抑制氧自由基形成，能消除炎症

C.促使肠上皮细胞再生

D.抑菌作用

E.肠黏膜保护作用

答案

参考答案：B

补全对话，情景问答

从方框中选择恰当的选项补全对话。其中有两项是多余的。

A. We will be free the day after that.
B. I want to ask you a question.
C. When are you going to take the tour?
D. Could you give me some help?
E. What places are you going to visit?
F. We'll have a day off. We are going to fly there.

A: Excuse me, sir.   1
B: Sure. What can I do for you, young man?
A:   2   So our class want to go on a trip. I'd like to look for some sightseeing information. I want to know
    if you have a one-day tour.
B: Of course we do. We have many such tours.   3
A: Well, we are going to visit Furong Cave (芙蓉洞), Three Natural Bridges (天生三桥), Fairy Mountain
    (仙女山) and so on.
B: They are interesting places in Wulong.   4
A: Well, today is Jan 8th. And we still have another four days before the final exams.   5
B: Oh, I see.

单项选择题

（）年，广州市人民政府创办了首届中国留学人员广州科技交流会。

A、1999

B、1998

C、1997