M、N、E、F四种物质在一定条件下发生化学反应,反应前后它们的质量如下表: MN

题型:选择题

问题:

M、N、E、F四种物质在一定条件下发生化学反应,反应前后它们的质量如下表:

MNEF
反应前的质量/g01102
反应后的质量/g452X
下列说法中正确的是(  )

A.该反应是化合反应

B.反应后X的值是3

C.E与N变化的质量之比为2:5

D.F可能是该反应的催化剂

考点:催化剂和催化作用质量守恒定律
题型:选择题

女孩,9个月。生后即哭闹后青紫。经多方面检查确诊为动脉导管未闭。该患儿心脏听诊可听到的杂音是()

A.心尖区舒张期杂音

B.心尖区Ⅲ级收缩期杂音

C.胸骨左缘第2肋间粗糙的响亮的连续性机器样杂音

D.肺动脉瓣区Ⅱ~Ⅲ级收缩期杂音

E.胸骨左缘第2~3肋间Ⅱ~Ⅲ级喷射性收缩期杂音

题型:选择题

阅读下面一段文字,结合文意,调整画线部分的语序,并做到各分句句式协调一致,匀整对称。

        因为每个人的个性、志趣、爱好、修养不尽相同,对书的喜爱也就千差万别了。有人偏爱小桥流水般的抒情小品;有人钟情跌宕起伏的悬疑剧本;情深意浓的言情小说有人迷恋;江河澎湃似的骁勇檄文有人喜欢……不同的读者,有人倾心静水深流,有人选择大开大合。

答:____________________________________________________________________________

题型:选择题

人体发育的起点是

A.婴儿

B.胎儿

C.卵细胞

D.受精卵

题型:选择题
A person may have a false idea about himself that will stop him from doing good work..
He may have the belief that he is unable to do it. A child may think he is  36  because he doesn’t understand how to make  37  use of his mental gifts. Old people may have a false idea that they are unable to learn new things because of their  38 .
A person who believes that he is stupid will not make a real  39  because he feels that it would be useless. He won’t go at a job with confidence necessary for  40 . Besides, he won’t work his hardest way, even though he may think he is doing so.  41 , he is likely to fail, and the failure will  42  his belief in his incompetence(无能)in turn.
Alfred Alder, a famous doctor, had  43  like this. When he was a small boy, he had a poor 44  in math. His teacher told his parents he had no ability in math in order that they would not  45  too much of him. In this way, his teacher and parents  46  the idea. He  47  their false judgment of his ability, feeling that it was useless to  48 . Then, he was very poor at math,  49  as they expected.
But one day everything changed. He worked out a problem which  50  of the other students had been able to solve. He  51  in solving the problem which gave him confidence. Soon he became especially good at  52 .
Alder now  53  with interest, determination and purpose. He not only proved that he could learn math well, but luckily he learned it  54 , not too late. From his own experience, we can tell that if a person goes at a job with determination and purpose, he may  55  himself as well as others by his ability.
小题1:
A.cleverB.shy C.uselessD.stupid
小题2:
A.bigB.fullC.highD.great
小题3:
A.age B.ability C.brain D.knowledge
小题4:
A.decisionB.planC.effortD.promise
小题5:
A.workB.studyC.improvementD.success
小题6:
A.TrulyB.ReallyC.HoweverD.Therefore
小题7:
A.lead to B.strengthenC.improveD.get rid of
小题8:
A.an experienceB.an exampleC.a thoughtD.a story
小题9:
A.stateB.mindC.startD.ending
小题10:
A.blameB.expectC.get D.win
小题11:
A.developedB.organizedC.discoveredD.found
小题12:
A.brokeB.refused C.doubted D.accepted
小题13:
A.manageB.argueC.tryD.act
小题14:
A.onlyB.almostC.just D.then
小题15:
A.noneB.all C.someD.most
小题16:
A.brokeB.succeededC.failedD.believed
小题17:
A.physicsB.medicineC.EnglishD.math
小题18:
A.studies B.worksC.playsD.graduates
小题19:
A.earlyB.deeplyC.laterD.simply
小题20:
A.discourageB.loveC.surprise D.disappoint
题型:选择题

列入国家药品标准的药品名称为药品的

A.通用名称

B.商品名称

C.标准名称

D.常用名称

E.注册名称

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