有H、O、S、K四种元素，按指定化合价（（+1H、-2O、-2S、+1K）组合，

发布时间：2017-05-23 16:33 │ 来源：www.tikuol.com

题型：选择题

问题：

有H、O、S、K四种元素，按指定化合价（（

、

-2

、

-2

、

）组合，最多可以组成由两种元素组成的化合物的种数是（　　）

A．4种

B．5种

C．6种

D．7种

考点：化合价的求法

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下列数据中，哪一组能构成直角三角形（　　）

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右眼先天性上睑下垂患者，6岁，右眼提上睑肌肌力2mm，额肌肌力10mm，左眼提上睑肌肌力12mm，额肌肌力10mm，适合的手术方式是（）。

A.提上睑肌缩短术

B.额肌提吊术

C.提上睑肌离断术

D.以上均可

E.以上均不可

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完形填空。
A kindergarten teacher let her students play a game. She toldeach child in the class to bring along a plastic bag 1 a few po-tatoes. Each potato would be given a 2 of a person the child 3 , so the number of the potatoes in their bags would 4 on the number of the people they hated. So when the day came, every child brought some potatoes withthe names of some people. Some had two potatoes ; some three 5 some up to five. The teacher then told the children to 6 withthem the potatoes 7 they went (even to the toilet) for oneweek. As days passed 8 , the children started to 9 aboutthe unpleasant smell let out by the rotten potatoes. 10 , those having five potatoes also had to carry heavier bags. After one week, the children were 11 because the game had finally ended. The teacher asked about their feelings of carrying the potatoes.The children 12 out their frustrations (沮丧) and started complaining of the trouble they had to 13 . Then the teacher told them the 14 meaning behind the game. She said:" This is exactly the 15 when you carry your ha-tred for somebody inside your heart. The stench (恶臭 ) of hatredwill contaminate (玷污) your heart and you will always carry it with you. If you cannot 16 the smell of rotten potatoes for just one week, can you imagine 17 it is like to have the hatred in your heart for your lifetime?" Moral of the story: 18 away any hatred for anyone from your heart 19 you will not carry it for a lifetime. 20 others is the best attitude totake !
( )1.A.including ( )2.A.character ( )3.A.hated ( )4.A.live ( )5.A.when ( )6.A.bring ( )7.A.however ( )8.A.by ( )9.A.wander ( )10.A.Besides ( )11.A.disappointed ( )12.A.gave ( )13.A.go through ( )14.A.skeptical ( )15.A.information ( )16.A.hold ( )17.A.how ( )18.A.Cast ( )19.Ain case ( )20.A.Abandoning	B.seating B.secret B.loved B.depend B.while B.take B.whenever B.away B.spread B.However B.relieved B.left B.pick up B.terminal B.identification B.tolerate B.whether B.Click B.so that B.Blessing	C.containing C.picture C.appreciated C.wait C.as C.fetch C.wherever C.on C.complain C.Therefore C.possessed C.broke C.turn to C.hidden C.tradition C.alter C.that C.Cross C.as though C.Consulting	D.growing D.name D.struck D.keep D.unless D.carry D.whatever D.out D.breathe D.Instead D.reserved D.let D.put away D.ignored D.situation D.combine D.what D.Cure D.now that D.Forgiving

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从1991年1月1日起，新增建设用地的土地有偿使用费，不管是上缴中央财政的部分还是留给地方政府的部分，都必须专项用于（）

A.土地开发

B.耕地开发

C.水土保持

D.公益建设

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两税合并前内资企业的所得税率标准为( )。

A．20%
B．25%
C．30%
D．33%

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