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问题 填空题

工业上利用液态氧和液态氮的______不同，采用______的方法制取氧气．为了便于贮存、运输和使用，通常把氧气加压成______，并贮存在钢瓶中．

答案

工业制取氧气采取的是分离液态空气的方法，因为液态氮沸点低，蒸发时会先气化最后得到液态氧．通常把液态氧加压贮存在钢瓶中．

故答案为：沸点；分离液态空气；液态．

选择题

       暑假期间，泰州的李芳邀请吐鲁番的吴丽、哈尔滨的张静和拉萨的顾兰来泰州参加夏令营活动，下面的谈话中与实际不符的是[ ]

A．李芳说：“我们这里气候湿润，物产丰富，被誉为鱼米之乡。”

B．吴丽说：“葡萄干是我家乡的特产，它是在晾房内风干而成的。”

C．张静说：“别看我家乡冬天比这儿冷很多，这时的气温可不比这儿低多少。”

D．顾兰说：“我家乡位于世界屋脊上，明早我要和在家的妈妈同时看日出。”

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单项选择题

The nobler and more perfect a thing is, the later and slower it is becoming mature. A man reaches the mature (1) of his reasoning powers and mental faculties (2) before the age of twenty-eight; a woman at eighteen. And then, too, in the case of woman, it is the only reason of a sort--very mean in its (3) . That is why women remain children their whole life long; never seeing (4) but what is quite close to them, (5) fast to the present moment, taking appearance for (6) , and preferring (7) to matters of the first importance. For it is (8) his reasoning faculty that man does not live in the present only, (9) the brute, but looks about him and considers the past and the future; and this is the origin of (10) , as well as that of care and anxiety which so many people (11) Both the advantages and the disadvantages, which this (12) , are (13) in by the woman to a smaller extent because of her weaker power of reasoning. She may, in fact, be described as intellectually shortsighted, (14) , while she has an immediate understanding of what lies quite close to her, her field of (15) is narrow and does not reach to what is (16) ; so that things which are absent, or past, or to come, have much less effect upon women than upon men. This is the reason why women are inclined to be (17) and sometimes carry their desire to a (18) that borders upon madness. In their hearts, women think it is men’s business to earn money and theirs to spend it--if possible during their husband’s life, (19) , at any rate, after his death. The very fact that their husband hands them (20) his earnings for purposes of housekeeping strengthens them in this belief.

17（）

A.extravagant

B.extreme

C.credible

D.wretched
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