C I began as a (91) ___________machine i

题型:完形填空

问题:

C

I began as a (91) ___________machine in 1642. It took nearly two hundred years (92) ___________I was built as an analytical machine. I became a “universal machine” in 1936 to (93) ___________any mathematical problem. I was very big at one time. However, as time (94),___________,I was made smaller and smaller. I was given a family (95) ___________by a network in the early 1960s. I was able to (96) ___________my knowledge with others (97) ___________the World Wide Web.

I have been widely used in many fields, such as in communication, (98) ___________,trade and medical (99) ___________.I have also been put into robots and space rockets to (100) ___________the Moon and Mars. I’m glad I am a devoted friend and helper of the human race.

考点:序数词
题型:完形填空

开户银行办理一般存款账户开立备案业务时,应将()等信息提交“人行账户管理系统”审核。

A.账号

B.开户日期

C.基本存款账户开户许可证核准号

D.基本存款账户开户地地区代码

题型:完形填空

大定风珠的君药是()

A.赭石

B.龟甲、鳖甲

C.阿胶、鸡子黄

D.玄参、天冬

E.牛膝

题型:完形填空

浩然同学以“物质溶于水后液体的温度是否改变?”为课题进行探究,其用品和操作示意图如下表:

实验目的探究下列物质溶解前后液体温度变化情况
实验用品药匙、烧杯、玻璃棒、温度计、水、氢氧化钠、氯化钠、硝酸铵
操作过程

他取三只烧杯,向烧杯中各注入25ml水,测得水的初温为20℃.再向三只烧杯中分别加入质量均为8g的氢氧化钠、氯化钠、硝酸铵固体,搅拌,待溶解后用温度计分别测三只烧杯中溶液的温度.

(1)“搅拌”的目的是______.图示④中的操作存在一处错误,应改正为______.

(2)三只烧杯中溶液的温度高于20℃的是______溶液,这是因为______.

(3)溶解硝酸铵固体的烧杯外壁有水珠产生,其原因是______.

(4)由此探究实验可知______溶于水温度没有明显的变化.

题型:完形填空

0.75mol RO32-共有30mol电子,则R在周期表中的位置是(  )

A.第二周期

B.第四周期

C.第ⅣA族

D.第ⅥA族

题型:完形填空

散文集《野草》的作者是()

A.老舍

B.巴金

C.鲁迅

D.郭沫若

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