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 高等教育 / 汽车运行材料

PVC是( )
A、聚苯乙烯
B、聚氯乙烯
C、聚丙烯
D、聚乙烯
  积分
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 佳题速递:
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  • Smoking, which may be a pleasure for some people, is a serious source of discomfort for their fellows. 1 , medical authorities express their concern about the effect of smoking 2 the health not only of those who smoke but also of those who do not. In fact, non-smokers who must involuntarily inhale (吸入) the air 3 by tobacco smoke may suffer more than the smokers 4 . Smoking is prohibited in the theatres and in halls used for showing films 5 in laboratories 6 there may be a fire hazard (危险). Elsewhere, it is up to your good 7 . I am 8 asking you to maintain "No-Smoking" in classrooms and seminar rooms. This will prove that you have the 9 health in mind, which is very important to a large 10 of our students. (1)(1分)A、StillB、FurtherC、MoreD、Again(2)(1分)A、inB、toC、onD、with(3)(1分)A、pollutingB、be polluted C、pollutedD、to be polluted(4)(1分)A、themB、themselvesC、their ownD、they(5)(1分)A、andB、butC、as well asD、also(6)(1分)A、whereB、whichC、thatD、how(7)(1分)A、feelingB、senseC、realizeD、think(8)(1分)A、soB、nextC、thereforeD、and(9)(1分)A、non-smokersB、non-smokers'' C、non-smoker''sD、non-smoker(10)(1分)A、number B、amountC、manyD、much新发展英语综合教程(二)
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