制作人口腔上皮细胞临时装片时,只能滴加0.9%的生理盐水,不能滴加清水。其原因是

题型:选择题

问题:

制作人口腔上皮细胞临时装片时,只能滴加0.9%的生理盐水,不能滴加清水。其原因是

A.使细胞离散开

B.减慢细胞运动

C.避免细胞失水皱缩

D.避免细胞吸水胀破

考点:观察实验:观察人的口腔上皮细胞动物细胞结构和功能
题型:选择题

下列不是机械通气治疗适应证的是()。

A.心肺复苏后期治疗

B.通气功能不全或衰竭

C.换气功能衰竭

D.呼吸肌功能失调或丧失

E.术后恢复期患者

题型:选择题

第二节:完形填空(共20小题;每小题1.5分,满分30分)

阅读下面短文,从短文后所给各题的四个选项(A、B、C、D)中,选出能填入相应空白处的最佳选项,并在答题卡上将该项涂黑。

With golden sunshine and a gentle breeze, autumn is the most beautiful season in the year.This is a great time to go outside and have  36 .Go to a valley to see red maple trees, go and pick fruit in an orchard (果园) or find an open field to fly your kite in.

37  , for many high school students, these great activities may be just a/an  38 .With plenty of work to do, they spend all their hours indoors,  39 for a high mark in their exams.

40  , study is one of the most important things for teenagers. 41  life is definitely much more than that.

Sometimes we may be so  42  with studying that we forget how to make  43  wonderful.In doing so, we lose the  44  purpose of life—to be a valuable and happy person.

To  45  just how great it is to be alive, we have to  46  our books and pens and look around us.Students, take some exercise to  47  your health, take with your parents and friends for understanding and walk around outside your house to refresh your body and mind.

Going out and enjoying the beautiful countryside often helps our creativity in our work.Chinese craftsman Lu Ban created a saw to help woodworkers.But  48  he hadn’t walked  49  , he would not have been  50  by a kind of toothed grass.We could also suppose if Newton hadn’t rested under that apple tree, then he wouldn’t have been  51  by an apple, and his great theories would not have come out.

Going out is not only a/an  52  from hard work, but a chance to  53  to life experience.

So  54 , give your brain a good rest.Step out of the books and get our bag ready for an autumn outing.We are sure you will get much more than  55  from the exciting journey.

36.A.food             B.sunlight            C.fun               D.air

37.A.Also             B.Besides            C.However          D.Therefore

38.A.aim              B.dream            C.chance            D.effort

39.A.asking            B.putting            C.calling             D.struggling

40.A.In fact             B.As a result             C.In turn             D.Of course

41.A.So               B.But              C.Because           D.And

42.A.covered           B.reached            C.occupied           D.buried

43.A.clothes            B.heart              C.face              D.life

44.A.practical            B.foolish             C.real               D.idle

45.A.possess            B.enjoy             C.exploit             D.discover

46.A.take up            B.burn out           C.put down          D.sell out

47.A.raise              B.increase            C.improve           D.recover

48.A.whether           B.if                C.since              D.until

49.A.inside             B.home            C.outside            D.backward

50.A.touched           B.invited             C.inspired            D.suggested

51.A.met              B.hit                C.admitted           D.claimed

52.A.break             B.absence            C.movement        D.dedication

53.A.refer              B.turn              C.stick              D.add

54.A.come on          B.go on             C.step on            D.walk on

55.A.awareness          B.evidence           C.courage           D.knowledge

题型:选择题

某同学用如左图所示装置测量重力加速度g,所用交流电频率为50 Hz.在所选纸带上取某点为0号计数点,然后每3个点取一个计数点,所有测量数据及其标记符号如右图所示.

该同学用两种方法处理数据(T为相邻两计数点的时间间隔):

方法A:由g1=,g2=,……,g5=,取平均值="8.667" m/s2;

方法B:由g1=,g2=,g3=,取平均值 ="8.673" m/s2.

从数据处理方法看,在s1、s2、s3、s4、s5、s6中对实验结果起作用的,

方法A中有                  ;方法B中有               .因此,选择方法                       (A或B)更合理,这样可以减少实验的                   (系统或偶然)误差.本实验误差的主要来源有                                           (试举出两条).

题型:选择题

任某因经营失败,欠下巨额债务,潦倒之间想到一个挣钱的办法。任某向保险公司投保了巨额人身伤害保险。随后,任某说服债务人熊某帮助其进行保险诈骗。能某在任某的授意下,砍断任某的双腿后逃离。任某随后向保险公司提出理赔申请。就在任某提出理赔申请的同时,能某被公安机关抓获,事情暴露。请回答以下问题。

假设王某和李某在第二审审理期间自行和解,人民法院应该如何处理此案

A.当事人应当制作和解书,第一审判决、裁定视为自动撤销

B.人民法院应当制作和解书,第一审判决、裁定视为自动撤销

C.人民法院裁定准许撤回自诉,并撤销第一审判决或者裁定

D.人民法院裁定驳回自诉,并撤销第一审判决或者裁定

题型:选择题

假设系统中的设备配置数据库与LVM出现了不一致,应该怎么做()。

A、shutdown-r

B、从mksysb恢复系统

C、运行odmdelete命令

D、运行synclvodm命令

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