下列表述中，最能说明偶然误差小的是（）。 A.高精密度 B.与已知含量的试样多次分析

Some students, parents and teachers in Shanghai were surveyed last month. According to the result of the survey, the generation gap (代沟) between students and parents as well as teachers is becoming wider. Here is what they said.

Voice of the students:

　 “Our parents hold too high expectations（期望）which put us under lots of pressure. They care too much about our lives and studies,” one student said.

“It’s impolite that some students’ parents read their children’s diaries without permission!” one student said angrily.

“Some of our teachers are so serious that we can’t make friends with them at all,” another student said sadly.

Voice of the parents:

One mother said, “After school, my daughter usually locks herself into her room and spends lots of time talking with others on the phone. And I can’t stand（忍受） her clothes and hairstyle!”

“I thought my son was doing very well in his studies. I didn’t realize I was being cheated by him until I got a call from his teacher,” said a father.

Voice of the teachers:

An English teacher said, “Today, the role of the teacher is to put knowledge into students’ brain. The power (权力) teachers have kept students away from them.”

“Some parents pay too much attention to their children’s grades instead of creating a lively and colorful environment at home,” another teacher said.

“In the past, teachers and students often played games together or talked with each other. Today, only studies and grades are talked about,” said a teacher. “A school should be a place where students can learn not only knowledge, but also how to face failure and frustration（挫折） bravely enough.” 

小题1: What does the first paragraph mainly tell us?

A．Students like telling how they feel to their classmates.

B．More and more students don’t like to be surveyed.

C．Some parents don’t like their children’s clothes and hairstyle.

D．There has been a great distance between students and parents as well as teachers.小题2:The underlined word “cheated” in the passage means ___________.

A．欺骗

B．批评

C．表扬

D．揭露小题3: What can we infer (推断) from the teachers who were surveyed?

A．Teachers feel what they are doing for students is good.

B．Parents, teachers and educational rules all influence students greatly.

C．Teachers should care more about excellent students.

D．Now teachers and students communicate better than before.小题4:Which of the following could be the best title for the passage?

A．Unhappy Teenagers

B．Educational Rules

C．The Generation Gap

D．Serious Parents

为什么要安装磁场继电器？

MS应用皮质类固醇治疗的方法是（）

A.小剂量长期使用

B.缓解期仍应坚持用药

C.大剂量短程疗法

D.一般常用强的松

E.不必使用补钾、补钙及抑酸

A．仅Ⅰ。

B．仅Ⅱ。

C．仅Ⅲ。

D．仅Ⅰ和Ⅱ。

你知道2009年中央安排农机具购置补贴资金是多少？比2008年增加了多少吗？