为了制定尿铅的正常值范围，测定了一批正常人的尿铅含量，下列哪种说法正确（） A.可以

发布时间：2017-09-03 20:13 │ 来源：www.tikuol.com

题型：单项选择题 A型题

问题：

为了制定尿铅的正常值范围，测定了一批正常人的尿铅含量，下列哪种说法正确（）

A.可以制定双侧95%的参考值范围

B.可以制定，应为单侧上限

C.可以制定，应为单侧下限

D.可以制定，但是无法确定是上侧范围还是下侧范围

E.无法制定，要制定正常值范围必须测定健康人的尿铅含量

考点：基础知识卫生统计学卫生统计学题库

题型：单项选择题 A型题

根据短文内容选择正确答案。

It's Saturday today, and Trent stays at home and does nothing because he doesn't have any lessons. But
his mother is busy. She has a lot of housework to do. So she gives (给) some apples and bananas to her
children and says to Trent:"Look after (照顾) Ann, I'll do some washing now." "OK, mummy," says Trent.
The boy likes apples and bananas very much. He finishes eating his soon and he wants Ann's. But the little
girl doesn't give him any. He thinks for a while (一会儿) and then has an idea (主意). He asks Ann to play
an animal game with him.
The girl agrees (同意). Trent begins to play a monkey and Ann plays a visitor (游客). They are very happy.
After a while Trent stops (停止) and says:"Oh, the monkey is hungry (饥饿的). He wants some food." Ann
gives some bananas to him. After a while Ann has no bananas. Trent stops playing and the little girl begins to
cry (哭泣).

1．Why does Trent stay at home today?

A．Because he must look after Ann.
B．Because he doesn't want to go to school.
C．Because he has no classes today.

2．What does mother ask Trent to do?

A．She asks him to eat fruit.
B．She asks him to look after the little girl.
C．She asks him to play games.

3．Why does Trent play an animal game with Ann?

A．Because he wants Ann's bananas.
B．Because he likes Ann very much.
C．Because he thinks to be a monkey is interesting.

4．Which of the following is wrong?

A．The girl likes watching animals.
B．Trent has more bananas than Ann.
C．Trent's mother doesn't like him.

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题型：单项选择题 A型题

第一部分：英语知识运用（共三节，满分50分）

第一节语音知识（共5小题；每小题1分，满分5分）

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1．meant

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2．wounded

A．cousin B．encourage C．housewife D．route

3．weekday

A．Wednesday B．nowadays C．Monday D．says

4．disappeared

A．practised B．knocked C．obeyed D．escaped

5．design

A．bargain B．foreign C．strange D．Geography

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time passed, however, the carnival period was extended.

A．As

B．when

C．while

D．since

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A．检修调速器，检修、清洗齿杆
B．减少供油量
C．更换燃油
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