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当前学科：中级热力司炉工
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常由于常压热水锅炉不承压，锅炉可以采用压制封头或下脚圈，不必采用角焊连接，可以提高材料利用率。
A . 正确
B . 错误
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1 There are many arguments for and against television. The poor quality of its program is often criticized and TV commercials are also boring. So television is undoubtedly 1.__________ a great comfort to many lonely and elderly people. 2 The manager of a large office building had received many complains about elevator service in the building, but he engaged a group of engineers to study the situation 2.__________ and make recommendation for improvement. 3 We asked a lady, who replied that she thought you could tell a well-mannered person by the way they occupied the space around them——for example, when such a person walks down a street he or she is constantly unaware of others. Such people never 3.__________ bump into other people. 4 Until the very latest moment of his existence, man has been bound the planet on which he originated and developed. Now he has the capability to leave that planet and move out into the universe to those worlds which he has known previously only directly. 4.__________ 5 One major decision which faces the American students ready to begin higher education is the choice of attending a large university or a small college. The large university provides a wide range of specialized departments as well as numerous courses within such departments. The small college, therefore, 5.__________ generally provides a limited number of courses and specializations but offers a better student-faculty ratio, thus permitting individualized attention to students. 6 Music the Johnny has learned to appreciate as unpleasant is just dull noise to Jimmy——and quite 6.__________ possible, vice versa. 7 We are learning, finally, that silence is a natural resource and must be protected by law. It appears that we all find company in sound, if we all 7.__________ demand a little quiet from time to time. 8 The farmer aroused at down or before it and had much work to do, with his own muscles as his chief source of power. He used axes, spades and 8.__________ other complicated tools. 9 Whether women who have started a career will attain pay equality with men rests on at least two factors. First, will most of them continue part-time at their jobs after they have children? A 9.__________ break in their employment, or a decision to work part-time, will slow their raises and promotions as it would for men. 10 Whether true or not, the story illustrates the problem with idioms. They are almost possible to 10.__________ understand from the meanings of the individual words. And with English idioms, even the same words may have different meanings. 在1处填写改错内容。 在2处填写改错内容。 在3处填写改错内容。 在4处填写改错内容。 在5处填写改错内容。 在6处填写改错内容。 在7处填写改错内容。 在8处填写改错内容。 在9处填写改错内容。 在10处填写改错内容。
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