铸件中硅量高会增加铁素体含量,所以珠光体球铁铸件浇注时不应该加瞬时孕育。

题型:判断题

问题:

铸件中硅量高会增加铁素体含量,所以珠光体球铁铸件浇注时不应该加瞬时孕育。

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题型:判断题

我国从1953年至今进行了6次人口普查,2011年4月28日国家统计局发布了第六次全国人口普查的主要数据.下面是我国6次人口普查的一组数据.

 第一次第二次第三次第四次第五次第六次
时间(年)195319641982199020002010
总人数(亿)6.197.2310.3211.6012.9513.39
请回答下列问题:

(1)上述人口普查采用的科学探究方法是______(调查、实验、模拟实验).

(2)下列关于人类必须要控制人口增长的理由,不正确的一项是______.

A.人口数量越少,人口的素质就越高

B.人口的增长会对资源、环境和社会发展产生巨大影响

C.控制人口增长可以更好地保护包括人类在内的生物圈

D.控制人口增长有利于人类世世代代有可利用的资源

(3)第六次人口普查中男性人口占51.27%,女性人口占48.73%,男女比例大致为1:1.人的性别不同主要是由______决定的,它在男性体细胞中为XY,在女性体细胞中为______.

(4)上表中的数据表明,当今我国人口数量的变化趋势是______.

A.急剧增长      B.增速变缓       C.无明显改变       D.数量逐渐减少.

题型:判断题
完形填空(共20小题;每小题1分,满分20分)
I was recently invited to dinner by a friend. During the meal, the manager of the restaurant came  16  and said that our meal was free. He stood there  17  at me and he seemed a little  18 to me but I couldn’t quite remember him.  19  I asked him if he knew me. He laughed and said I had probably  20  him, but that I’d changed his life. My friend was quite  21  and asked him how I’d done this.
He said that twelve years ago he   22  a stress(压力)management(管理)class that I was giving. I asked the group what their greatest  23  was and most of them, including him, said it was their bosses.
He said I listened   24  and then took a chair and placed it in the center of the room. I  25  on the chair for a few moments and then I   26  everyone to come and do the same. I wanted them to look at the room from up there. After everyone had done it, I asked the group to  27  how the room looked different when they changed their perspective(角度).
Then I asked them to  28  their bosses. Was this the same person who had seen their good  29 and hired them? Did they remember how happy they were to be  30  for the job? But how did these wonderful people become terrible bosses?
He said I looked at him and asked if he had  31  said thank you to his boss for the  32  to earn a living. He answered he hadn’t. Then I asked him why he hadn’t tried being  33  to his boss.
He told us his  34  changed that night. He went back to work the next day with a thank-you card to his boss. He said I’d  35  him to look at life from different perspectives and express thanks.
小题1:
A.outB.backC.overD.on
小题2:
A.smilingB.glaringC.knockingD.shouting
小题3:
A.similarB.attractiveC.strangeD.familiar
小题4:
A.ImmediatelyB.FinallyC.SuddenlyD.Firstly
小题5:
A.dislikedB.knownC.ignoredD.forgotten
小题6:
A.curiousB.anxiousC.happyD.calm
小题7:
A.missedB.preparedC.attendedD.heard
小题8:
A.heroB.stressC.likingD.trouble
小题9:
A.regretfullyB.disappointedly C.doubtfullyD.carefully
小题10:
A.stoodB.layC.satD.rested
小题11:
A.forcedB.stoppedC.invitedD.warned
小题12:
A.work onB.think aboutC.look intoD.fill out
小题13:
A.rememberB.dislikeC.respectD.consider
小题14:
A.qualitiesB.personalitiesC.experiencesD.looks
小题15:
A.meantB.refusedC.chosenD.forgiven
小题16:
A.stillB.actuallyC.neverD.ever
小题17:
A.rightB.opportunityC.solutionD.ability
小题18:
A.politeB.friendlyC.gratefulD.gentle
小题19:
A.lifeB.jobC.luckD.company
小题20:
A.orderedB.taughtC.allowedD.persuaded
题型:判断题

女患,37岁,病史:1周前头痛、咳嗽、低烧,3天前出现四肢无力伴手脚发麻,渐加重,1天前出现复视。查体:双眼球外展活动差,双眼闭合不全,额纹消失,不能鼓腮动作,四肢肌力2级,肌张力减低,各腱反射(-),感觉正常,双侧Babinski征(-)。首要治疗应选择()

A.肾上腺皮质激素

B.氯化钾

C.免疫球蛋白

D.维生素

E.抗生素

题型:判断题

“一国国民,都须在可能范围内,按照各自能力的比例,即按照各自在国 * * 护下享得的收入的比例,缴纳国赋、维持政府”这体现了亚当·斯密哪一税收原则( )

A.平等原则
B.确实原则
C.便利原则
D.最少征收费用原则

题型:判断题

中国的民间谚语说:“瑞雪兆丰年”,这一说法()

A.属于人们主观臆造的联系

B.反映了农作物与气候、环境联系密切

C.说明农作物收成好坏是“天”主宰的

D.否认联系的客观性,只是一种美好愿望

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