选煤厂有哪些主要的生产辅助设施？

ATM交换的单位是信元。在信元中使用CRC校验和来进行差错控制。CRC校验和生成公式为 (288) ，并且，校验和只对 (289) 进行校验。信元交换采用的复用技术是 (290) 。在交换过程中，当实施VP交换时，其中VPI、VCI的变化情况是 (291) 。若在交换过程中出现拥塞，该信息被记录在信元的 (292) 中。

（289）处填（）

A. 整个信元

B. 信元头

C. 信元载荷(用户数据)

D. 信元的地址域

用背负式机动喷雾机进行喷药作业，作物表面有雨水时不能进行喷药，但作物表面有露水时不影响防治效果。

阅读理解。

     Amelia Earhart's (1897-1937) childhood was not the typical girl's. She liked nothing better than to explore

the banks of the Missouri River, where she climbed trees and hunted rats with her rifle (步枪). She also built

her own roller coaster (过山车).

     The exciting life of the American aviation (航空) pioneer is dramatized in the movie Amelia, which is due

to come out on October 23.

     After Earhart paid a pilot $1 to take her up for a short fly in his plane, aviation became her love and career. 

     As she later explained, "Never do things others can do and will do, if there are things others cannot do or

will not do."

     Earhart found herself a flying teacher and started to 1earn to fly. She took all sorts of jobs to pay for the

lessons and to buy a second-hand plane on her 24th birthday.

     In 1932, Earhart flew solo (单人的) across the Atlantic. She became the first woman to make the solo

crossing. She also made a flying suit for women and went on to design other clothes for women who led

active lives. "Now and then women should do for themselves what men have already done-occasionally what

rnen have not done-thereby establishing themselves as persons, and perhaps encouraging other women toward

greater independence of thought and action," she said．

     When she was nearly 40, Earhart was ready for a final challenge-to be the first woman to fly around the

world. However, in mid-night, she and her navigator (导航员) disappeared in bad weather. 

     Earhart will be forever remembered as a brave pioneer for both aviation and for women.

1. According to the passage, which of the f0110wlng statements is true? [ ]

A. A movie about Earhart's exciting life has come out.

B. Earhart never did things others could and would do.

C. Earhart's love for aviation carne after she new a plane for a short time.

D. In Earhart's opinion, women should think and act more independently.

2. The underlined word in paragraph 2 means _____. [ ]

A. presented

B. adopted

C. published

D. created

3. From the passage we can know that _____. [ ]

A. Earhart showed rnost interest in adventure trips to the Missouri River during her childhood

B. Earhart's ambition was to fly across the Atlantic

C. Earhart challenged herself constantly

D. Besides flying, Earhart also designed planes and clothes

4. You can probably find this article in _____. [ ]

A. a booklet

B. a newspaper

C. a guide book

D. an advertisement

高尿酸血症患者，应多饮水，使每日尿量达（）。

A.1000~2000ml

B.2000~3000ml

C.3000~4000ml

D.4000~5000ml

E.5000~6000ml

新生儿体温调节的描述不正确的是（）

A.体温调节中枢发育不成熟

B.体表面积相对较大，体温易丧失

C.汗腺功能不成熟，通过出汗调节体温功能差

D.新生儿代谢率高，容易发热

E.基础代谢率低