问题 问答题 简答题

简述天然气中的杂质及对生产的危害?

答案

参考答案:

天然气的杂质:液体杂质,包括油和水,固体杂质包括泥、沙、灰尘。

危害:⑴使管线输气能力下降,⑵含硫地层水低管线的腐蚀⑶固体杂质在高速流动中对管壁的冲蚀,(4)使天然气的流量计量不准。

阅读理解

When former American President Bill Clinton travelled to South Korea to visit President Kim Young Sam, he repeatedly referred to the Korean president's wife as Mrs. Kim. By mistake, President Clinton’ s advisers thought that Koreans have the same naming customs as the Japanese. Clinton had not been told that, in Korea, wives keep their family names. President Kim Young Sam's wife was named Sohn Myong Suk. Therefore, she should be addressed (称谓) as Mrs. Sohn.

President Clinton arrived in Korea directly after leaving Japan and had not changed his culture gears. His failure to follow Korean customs gave the impression that Korea was not as important to him as Japan.

In addition to Koreans, some Asian husbands and wives do not share the same family names. This practice often puzzles English-speaking teachers when talking with a pupil’s parents. They become puzzled about the student's correct last name. Placing the family name first is common among a number of Asian cultures.

Mexican naming customs are different as well. When a woman marries, she keeps her family name and adds her husband's name after the word de (of). This affects how they fill in forms in the United States. When requested to fill in a middle name, they generally write the father's family name. But Mexicans are addressed by the family name of the mother. This often causes puzzlement.

Here are a few ways to deal with such difficult situations: don’t always think that a married woman uses her husband's last name. Remember that in many Asian cultures, the order of first and last names is reversed. Ask which name a person would prefer to use. If the name is difficult to pronounce, admit it, and ask the person to help you say it correctly.

67. The story of Bill Clinton is used to__________.                         

A. improve US-Korean relations                     B. introduce the topic of the text

C. describe his visit to Korea                        D. tell us how to address a person

68. The word "gears" in paragraph 2 is closest in meaning to_______.             

A. action plans                                            B. naming customs    

C. travel maps                                             D. thinking patterns

69. When a woman marries in Korea, she ___________.                       

A. continues to use her family name                      B. uses her husband's given name

C. shares her husband's family name                 D. adds her husband's given name to hers

70. To address a married woman properly, you'd better______.                  

A. use her middle name                   B. use her husband's first name

C. ask her which name she likes              D. change the order of her names

单项选择题