在正常情况下，绝缘材料也会逐渐（）而降低绝缘性能。 A.磨损 B.老化 C.

中国古代某地发生洪灾，内阁大臣据皇帝旨意写成诏书，送工部、户部执行赈灾。据所学知识判断上述情境最有可能出现于[ ]

A．秦朝

B．汉朝

C．唐朝

D．明朝

女性患者，右乳外上象限出现肿物一年，临床触诊圆形，界清，可移动。行肿物切除。

有关该疾病的叙述，不正确的是（）。

A.肿瘤的实质由增生的腺体和纤维结缔组织共同构成

B.通常具有完整包膜

C.是乳腺常见的良性肿瘤

D.是一种癌前病变

E.手术切除后不复发

阅读理解。

Dear Editor,

     I'm a Senior 1 student in a middle school. This term, my favourite teacher, Miss Mao, no longer teaches

us. I want to see her, but I'm afraid that she no longer likes me and I don't want to trouble her. I really miss

her. What should I do? 

                                                                                                                                             Tian Yan

Dear Tian Yan,

     It's bad luck that you have lost your favourite teacher. But, if she is still in your school, nothing can stop

you going to see her. When she isn't busy, ask her if she minds having a quick chat. You can then tell her

she was your favourite teacher. Everyone is happy to know they are liked!

     If she has left the school, it will be more difficult to meet her. It will be hard, but remember people always

come and go in our lives. We can't rely on (依靠) them being with us all the time.

     You may be sad to say goodbye to her, but we can remember and learn from her. Think of her best

qualities. 

     You could also try looking for similar qualities in your other teachers. Study hard and give your new

teacher a chance. In time, you might start to see that he or she has different qualities to learn from.

      Finally, you can not completely rely on other people getting you through your studies, or even your life. 

                                                                                                                                                Editor

1. Tian Yan ______.

A. is a troublemaker

B. likes Miss Mao very much

C. is happy these days

D. doesn't like to tell her secret to anyone

2. Which of the following does the editor advise Tian Yan NOT to do?

A. Find a time to see Miss Mao.

B. Have a short chat with Miss Mao.

C. Tell Miss Mao she likes her.

D. Keep quiet about the thing.

3. The expression"in time" in this passage means "______".

A. over a period of time

B. on time

C. at the right time

D. a long time ago

4. According to the passage, students can make progress in their studies ______.

A. completely by their favourite teachers

B. completely by their favourite classmates

C. mainly by their parents

D. mainly by themselves

做控制图之前须先对测量系统进行分析，通常，我们要求GR&RB（）。

A、不大于20%

B、不大于10%

C、小于15%

D、小于30%

下面示例中准则的功能是（）。

A．查询1999年1月之前参加工作的职工

B．查询1999年12月之后参加工作的职工

C．查询1999年参加工作的职工

D．查询1999年1月和2月参加工作的职工