题干

已知KClO3与浓HCl反应的化学方程式为:KClO3+6HCl=KCl+3C12↑+3H2O若用K35C1O3与H37Cl作用,则下列说法正确的是 (     )

A:所得氯气的相对分子质量约为71

B:KCl中只含37C1

C:KCl中既含35C1又含37Cl

D:被氧化和被还原的氯原子数之比为1∶5

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B

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For several years, Americans have enjoyed teleshopping—watching TV and buying things by phone.Now teleshopping is starting in Europe (欧洲).In a number of European countries, people can turn on their TVs and shop for clothes, jewelry, food, toys, and many other things.
Teleshopping is becoming popular in Sweden, for example.The biggest Swedish company sells different kinds of things on TV in 15 European countries, and in one year it made $100 million.In France there are two teleshopping channels, and the French spend about $20 million a year to buy things through these channels.
In Germany, until last year teleshopping was only possible on one channel for 1 hour every day.Then the government allowed (允许) more telepshopping.Other channels can open for telebusiness, including (包括) the largest American teleshopping company and a 24hour teleshopping company.German businessmen are hoping this new teleshopping will help them sell more things.
Some people like teleshopping because it allows them to do their shopping without leaving their homes.With all the problems of traffic in the cities, this is an important reason.But at the same time, other Europeans do not like this new way of shopping.They call teleshopping “junk (垃圾) on the air”.Many Europeans usually worry about the quality (质量) of the things for sale on TV.Good quality is important to them, and they believe they cannot be sure about the quality of the things on TV.
The need for high quality means that European teleshopping companies will have to be different from the American companies.They will have to be more careful about the quality of the things they sell.They will also have to work harder to sell things that the buyers cannot touch or see in person.



同类题5

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十毫升母爱

邓琴

    ①这半年,我一边上班一边照顾孩子,疲惫不堪,吃不好睡不好,身体慢慢变差。虽已立春,但春寒料峭,凛冽的风仍不时从门缝往里吹。瘦弱的我受了风寒,终于熬不住,病倒了。

    ②丈夫建议:“要不把孩子的姥姥接过来吧?帮忙带带孩子!”我却犹豫了。

    ③我从小就怕母亲。记忆中,母亲脾气暴躁,一直以凶神恶煞的面目出现。我有丝毫让她不满意的地方,她便会严厉地指责我,给我幼小的心灵留下了浓浓的阴影。

    ④母亲几乎没有夸奖过我,也许是没有文化的缘故,她甚至不懂得在我难过之际给予一点安慰。高考结束,我的成绩不太理想,母亲却没有安慰我,只是忙着做自己的事。拿到录取通知书时,我递给母亲看,她没有接,低着头冷冷地说:“叫你不要报这么差的大学。”我默默收回了通知书,流着泪转身离去。

    ⑤这些年,我们母女的关系一直淡淡的,交流很少,彼此都习惯了对方的淡漠。

    ⑥丈夫瞒着我给母亲打了电话。没想到,她竟然很快从千里之外坐车赶来了。打开门,看见母亲扶着墙壁站在我面前时,我竟有些不知所措。母亲晕车厉害,一上车便开始吐。等到下车,虚弱得像丢了半条命。

    ⑦我赶紧把母亲迎进门,母亲顾不上自己身体不适,一个劲盯着我看,说:“就你逞能,都累成这样了!”语气一如既往的不中听。我已经习惯了,无声地笑了笑。

    ⑧母亲来了,我的担子被她分去一部分,顿感轻松多了。我的病却很奇怪,药吃了一周,不见好。尽管穿着厚厚的棉服,还是咬着牙关瑟瑟发抖。晚上我早早地躲进被窝,母亲则在客厅打电话。连续几个晚上,她都在电话里和她的老姐妹拉家常。

    ⑨一天早上,母亲从外面回来,放下包便进了厨房。许久,从厨房猫着腰出来了,手里端着一碗冒着热气的汤水,递给我,催促我快点喝完。看着她期待的眼神,我忍着怪味把那碗汤水一饮而尽。和小时候一样,看到我乖乖的表现,母亲脸上露出了满意的笑容。

    ⑩连续几天,母亲都会做一碗这样的汤水让我喝。我实在忍不住,问这是什么东西。母亲说是一位老姐妹提供的秘方,专治体虚怕冷的毛病。听了这话,我感觉有一股暖流涌上心头。原来那些天,她和老姐妹们煲电话粥,是在帮我找药方。

    ⑪病假结束了,我得赶早上班。早上七点,母亲已不在家,她每天早早去买菜,按她的说法,早晨的菜新鲜。我从小都在服从她,自然无法说服她多睡一会儿。

    ⑫我骑车赶往单位。风直往衣服里钻,我不由得缩紧了脖子。路上,有个声音夹杂着风声钻进了我的耳朵:“阿姨,今天又这么早来接露水啊!”我好奇地循声望去,一片树丛中,蹲着一个人,竟是母亲!

    ⑬我远远地站着,听着那人和母亲的对话。

    ⑭“阿姨,你在这接了一周了吧?每次一个多小时吧?这露水真的能入药吗?”

    ⑮“我老姐妹说,不同叶子上的露水有不同功效,不管它有没有用,总要试试。药方所需露水不多,每次只要这么一小瓶。”

    ⑯母亲扬了扬手中的瓶子。那是一个口服液的瓶子,容量为十毫升。母亲腰椎间盘突出,不能久坐,为了十毫升露水,却在呼啸的冷风中不知疲倦地蹲着。

    ⑰母亲捶打着腰,蹒跚着往家的方向走去。我站在风中,看着母亲瘦小的背影,不禁潸然泪下。有些爱很微小,微小到只能用毫升衡量。即便十毫升的瓶子,里面装的也是满满的母爱——是我从未靠近却真实存在的亲情。