题目内容
（请给出正确答案）
A．离焊接作业点5m以内及下方不得有易燃物品,不得有乙炔发生器或氧气瓶
B．不得在储存汽油、煤油等易燃物品的容器上进行焊接作业
C．焊接管子时,管子两端应当打开,并不得有易燃物品
D．不得带压焊接压力容器
E．焊接盛过可燃气体或可燃液体的容器前,均应先打开盖反复清洗容器内残留的危险物质;在锅炉内、管道内、井下、地坑内焊接前,也应先清除其内残留的危险物质
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更多“为了防止电焊机火灾、爆炸,下更要求正确的有（)。A．离焊接作…”相关的问题
第1题
According to the passage, all of the following statements are true except that ______.
A．in arranged marriages, the brides and grooms never meet before their wedding
B．many Americans think the idea of arranged marriage out of date
C．all marriages are not arranged in America
D．a lot of informally arranged marriages exist in America
第2题
Most Americans find the idea of arranged marriages difficult to understand or accept. They believe that two people should marry for love, after a period of dating or courtship. During that period, the prospective marriage partners are supposed to learn enough about each other to decide whether or not they will be able to build a successful marriage. Today in America, it is common for people to live together as a way of preparing for marriage. The idea of an arranged marriage seems very old fashioned indeed.
But aren't all marriages arranged in one way or another？ In the United States marriages are seldom formally arranged, but quite a lot of informal arranging goes on before two people become husband and wife. People who get married are introduced to each other by friends. These friends have already decided that the two people are right for each other and arrange for them to meet. In the United States this kind of arrangement is very common. Because friends have such great influence, their approval of a dating or mating partner is very important.
Families also exert open and subtle pressures on their children to influence their choices of marriage partners. Parents often arrange dates for their own children. One parent often tells a friend a bout her beautiful daughter or handsome son. Also, parents can meet the perfect marriage prospect for their son or daughter through business relationships. Since parents often assist their children financially, they feel that they have the right to help the bride and groom select where they will live, what type of furniture they will purchase, and what their life-style. will be like.
To a larger extent, social class determines the choice of a marriage partner in the United States. Marriages are usually arranged between people of similar religious, ethnic, and financial back grounds. Despite what we see in the movies, the son of a bank president rarely marries or even meets a miner's daughter. Americans may not accept or understand arranged marriages, but marriages in the United States are arranged nevertheless.
Which of the following can be chosen as the best title of this passage？
A．Americans' Marriage
B．Arranged Marriage
C．Marriage for Love
D．Perfect Marriage
第3题
A．Three popular sports in the United States.
B．Sports and the United States.
C．The most popular sport in the United States.
D．Sports in the United States.
第4题
New York is the capital of the United States.()
第5题
During the 1800s ______.
A．marriage involved two families
B．parents arranged marriages
C．marriage joined two people
D．parents chose husbands for their daughters
第6题
Old-fashioned cheeses can no longer be bought anywhere in the United States.()
第7题
The McDonald's is the largest employer in the United States.()
第8题
Thanksgiving Day is celebrated in
A．Britain.
B．Britain and the United States.
C．the United States.
D．all the English-speaking countries.
第9题
According to the passage, the figure 40% (Paragraph Five) is uncertain because______.
A．there has been a big increase in the number of arranged marriages
B．Western love marriage still remains popular among young Japanese
C．young Japanese start dating very early in their life in a Western tradition
D．the tendency for arranged marriages could be stronger than is indicated
第10题
According to the passage, the figure 40% (Paragraph Five) is uncertain because______.
A．there has been a big increase in the number of arranged marriages
B．Western love marriage still remains popular among young Japanese
C．young Japanese start dating very early in their life in a Western tradition
D．the tendency for arranged marriages could be stronger than is indicated
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