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问题 单项选择题 A1型题

关于流行病学，下列哪种说法正确（）

A.从个体的角度研究疾病和健康

B.只研究传染病的流行和防治

C.只研究慢性病的危险因素

D.研究人群中疾病和健康的分布及其影响因素

E.无法研究原因不明疾病

答案

参考答案：D

单项选择题

For each blank, choose the best answer from the four choices and write down on the answer sheet.
Web browser is simply a terminal emulator, designed to display text on a screen. The two essential differences between an ordinary terminal emulator and a Web browser are that the browser knows how to deal with (71) , and that it has a mechanism for (72) graphical fries. Display text, display graphics, and (73) hyperlinks-there’ s 99 percent of the (74) value. That’s not to say that the manufacturers didn’t go all-out to attach a hyperactive efflorescence of useless capabilities onto their browsers. Remember when media channels in the browser were a big deal, instead of the clutter you can’t wait to delete from your favorites of bookmarks menu Remember when client - side Java applets were supposed to become the preferred (75) for application development Remember frames and all their nasty side effects

A．superlinks

B．links

C．hyperlinks

D．connections
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阅读理解
读一读下面的对话，写名称。
A: Where is the teacher's office?
B: It's on the first floor.
A: Where is the art room?
B: It's on the second floor; The music room is on the second floor, too.
A: Is the canteen on the first floor?
B: Yes, it is. And the washroom is on the first floor, too.
A: Do you have a TV room?
B: No, we don't. But we have a gym. It's on the second floor.
gym     TV room    music room    art room
washroom    teacher's office    canteen
1. _____________  2. _____________  3. _____________
4. _____________  5. _____________  6. _____________              
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