鼻咽癌颈部淋巴结转移，常首先发生在（）。 A.颌下淋巴结 B.颈深淋巴结下群 C.颈

列车进站停稳后，组织乘客先下后上，对下车乘客迅速（），主动提醒上车乘客注意（）；人多拥挤时，积极劝说乘客等候（）。

阅读理解。

      An artist went to a beautiful part of the country for a vacation, and stayed with a farmer.

      Every day he painted from morning to evening, and then when it got dark, he went back to the farm

and had a good dinner before he went to bed.

      At the end of his vacation he wanted to pay the farmer, but the farmer said,"No, I don't want money-

but give me one of your pictures.  What is money? -In a week it will be all over, but your painting will still

be here with me. "

      The artist was very happy and thanked the famer for saying such kind things about his painting.

      The farmer smiled and answered, "It's not like that. I have a son in London.  He wants to

be an artist. When he comes here next month, I will show him your picture, and then he won't want to be

an artist any more, I think. "

1. The artist went to the beautiful part of the country______.

A. to see a friend

B. to visit the farmer

C. to go on vacation

D. for nothing

2. What did the artist do there every day?

A. He had a talk with the farmer.

B. He took a walk in the country.

C. He did nothing but ate a good dinner______.

D. He painted.

3. The farmer wanted .

A. to get more money from the artist______.

B. the artist to teach his son

C. to get a picture from the artist

D. the artist to stay longer with him

4. The farmer______.

A. enjoyed the artist's pictures very much

B. didn't think the artist's pictures were good

C. had too much money

D. liked his own farm

5. The best title of this passage is______.

A. A Happy Vacation

B. A Terrible Painting

C. A Great Painting

D. How to Be a Farmer

语言是社会交往的工具，是人们表达意愿、思想感情的媒介和符号。言之有“礼”，谈吐文雅，主要有哪几层含义？

系统间干扰类型主要有（）。

A.加性噪声干扰

B.邻道干扰

C.交调干扰

D.阻塞干扰

汽轮发电机组每生产1kW?h的电能所消耗的热量叫热效率。