A、There are many difficulties in the examination. B、The examination is useless for the employees. C、The examination is to tell p

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问题  
M: Hi, Jenny, why are you still eating while you are using the computer?
W: Why? I don’t make the keypad dirty.
M: Think twice before eating those dropped crumbs off your computer keyboard — you might as well be eating off a toilet seat.
W: That’s horrible: I don’t believe that at all.
M: A study by British Consumer magazine who asked a microbiologist to examine for bugs on 33 keyboards in a typical London office, a toilet seat and a toilet door handle.
W: What’s the result? Is it serious?
M: Yes, four keyboards were judged potential health hazards and the microbiologist recommended the removal of one keyboard as it had five times bacteria than the cleaned toilet seat.
W: Most people don’t give much thought to the dust and dirt that builds up on their PC.
M: But if you don’t clean your computer, you might as well eat your lunch off the toilet.
W: Does it mean that dropped crumbs and food encourages the grows of millions of bacteria?
M: Sure, the study found that eating at computer desks is the main cause of bug-infected keyboard.
W: In that way, poor personal hygiene, such as not washing hands after going to the toilet, may also add to the dirtiness of the keyboards.
M: But as far as I know, a survey of 4,000 people by the magazine found one in ten people never cleaned their keyboards while another two in ten never cleaned their mouse.
W: Oh, I should first clean my hands and learn how to clear out bugs.
Questions 12 to 15 are based on the conversation you have just heard.
12. Why is the woman advised not to eat at the computer?
13. What can we know about the microbiologist’s examination?
14. Which is the cause of a bug-infected keyboard?
15. What can be inferred from the conversation?

选项 A、There are many difficulties in the examination.
B、The examination is useless for the employees.
C、The examination is to tell people there are many bugs on keyboard.
D、The examination is very successful.

答案C

解析 细节题。英国《消费者》杂志邀请一名微生物专家检测一家典型的英国办公室里的33个键盘,一个厕所马桶和厕所门把手的细菌状况。检测目的是为了让人们了解键盘上的细茵非常多。
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