一氧化碳与氢气混合物中氢气的质量分率为0.70,则氢气的摩尔分率为()。A、0.14

题型:单项选择题

问题:

一氧化碳与氢气混合物中氢气的质量分率为0.70,则氢气的摩尔分率为()。

A、0.14

B、0.30

C、0.55

D、0.97

考点:在线分析仪表工在线分析仪表工技师在线分析仪表工技师题库
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著名跨国药企葛兰家史克中国公司采取直接行贿或赞助项目等方式,向政府部门个别官员、医药行业协会和基金会、医院、医生等大肆行贿,提高药价。对材料认识正确的有

①市场调节具有盲目性的弊端                   ②市场调节具有自发性的弊端 

③健全的法律法规是规范市场秩序的根本         ④良好的市场秩序依靠市场规则来维护

A.②③

B.①④

C.①③

D.②④

题型:单项选择题

几年来,我国许多餐厅使用一次性筷子,这种现象受到越来越多的批评。资源环境工作者呼吁:为了保护森林资源,让山变绿、水变清,是采取坚决措施,禁用一次性筷子的时候了。 除了以下( )说法外,其他说法都从不同方面对批评者的观点提供了支持。

A.我国森林资源十分匮乏,把宝贵的木材用来做一次性筷子,实在是莫大的浪费

B.1998年的特大水灾不但与天气有关,也与多年的滥砍滥伐有很大关系

C.森林和各种绿色植被对涵养水分、调节气候、防止水土流失具有不可替代的作用

D.保护森林不能只保不用。合理使用,适量采伐,发展林区经济,,还能促进保护

题型:单项选择题
完形填空(共20小题;每小题1.5分,满分30分)
My wife called, "Will you come here and make your darling daughter eat her food?" I rushed to the scene. My only daughter, Sindu,  36   frightened. In front of her was a bowl filled with  rice. She   37   disliked rice.
“Sindu, why don’t you take a few   38   of this? Just for  Dad’s sake. If you don’t, your mom will shout at me. ” Sindu softened a bit and   39   her tears with the back of her hands.  "OK. Dad. I will eat. But, you should…" Sindu hesitated. " Dad, if I eat the rice, will you give me  40  I ask for?" " Oh, sure. " She  41   eating the whole quantity. After the ordeal was  through, Sindu came to me, " Dad, I want to have my   42  shaved off this Sunday!"
" Darling, we will be sad   43   you with a clean - shaven  head." "Dad, you saw how difficult it was for me to eat the  rice. " Sindu was in tears. "   44   you promised to give me  whatever I ask for. " It was   45   for me to call the shots . "Our promise must be  46 . "
With her head clean - shaven, Sindu had a round face. On  Monday morning, I dropped her at her   47    Just then, a boy  shouted, "Sindu, please wait for me!" 48   struck me was the  hairless head of that boy.
"Sir, your daughter Sindu is great   49 !" a lady said to  me. ."That boy who is walking along with your daughter is my son  Harish. He is   50   from leukemia(白血病)?He lost all his  hair due to the side   51   of the chemotherapy ( 化疗). He refused to  52   to school for fear of being laughed at. Sindu visited him last week'" But, I   53   imagined she would sacrifice  her lovely hair for the sake of  54  "My little angel, you are teaching me 55 selfless real love is!" I wept.
小题1:
A.lookedB.ProvedC.soundedD.turned
小题2:
A.properlyB.likelyC.formerlyD.particularly
小题3:
A.bowlsB.mouthfuls C.ricesD.pieces
小题4:
A.cleanedB.burstC.wipedD.crashed
小题5:
A.howeverB.wheneverC.whereverD.whatever
小题6:
A.enjoyedB.finishedC.practicedD.liked
小题7:
A.hairB.faceC.earD.hand
小题8:
A.comparingB.lookingC.seeingD.watching
小题9:
A.SoB.AndC.IfD.Though
小题10:
A.chanceB.goodC.choiceD.time
小题11:
A.madeB.carriedC.keptD.broken
小题12:
A.roomB.schoolC.houseD.desk
小题13:
A.ThatB.ThisC.ItD.What
小题14:
A.in factB.for exampleC.indeedD.really
小题15:
A.sufferingB.separatingC.judgingD.affecting
小题16:
A.illnessesB.effectsC.healthD.medicine
小题17:
A.come backB.turn backC.pay backD.date back
小题18:
A.suchB.evenC.everD.never
小题19:
A.your daughter B.my sonC.meD.you
小题20:
A.howB.WhetherC.whereD.when
题型:单项选择题

10

(2010·浙江台州中学高三第二次统练)

高三同学面临沉重的升学压力,因此,很多同学课间休息时间也坐在教室里学习,但效果并不理想。就此,班主任准备开一次班会课,以劝诫这些同学:适当的休息很有必要。现请你以“The Ten-minute Break Between Classes”为题,按以下要求写一篇英语短文,让这些同学从中受到启发。要点如下:

十分钟的课间休息很有必要;

这段时间学习效果并不理想;

你是如何利用这十分钟休息时间的。

注意:词数100字左右,开头已给出,不计入总词数。

The Ten-minute Break Between Classes

__Time seems to be so limited for us Senior Three Students.

___________________________________________________________________________________

题型:单项选择题

第一本使海伦体会到真正历史价值的书是斯温顿的()。

A.《欧洲史》

B.《世界史》

C.《中世纪》

D.《英国民族史》

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