第四节语法填空(共10小题,满分15分) 阅读下面短文,按照句子结构的语法性和上

题型:完形填空

问题:

第四节语法填空(共10小题,满分15分)

阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空格处填入一个适当的词或使用括号中的词的正确形式填空。

Good morning, ladies and gentlemen. I’m very pleased   56   (see) all of you here because you are my special guests. Welcome to our company’s museum. My name is Brown, George Brown. I’m the general manager of the company. As you all know, we   57   (main) make computers in our company, as well as some other electronic products. But we are also quite interested in   58   (educate). That’s why we have founded this museum,  59   children can learn how computers have been developed, how they are made   60   how they are used in industry, agriculture, scientific research and many other areas. Children can operate the computers, they can push the buttons and listen to stories   61   computers, and they can enjoy video shows. I know you are all teachers and you know  62   schoolchildren really need. So I hope you can give me suggestions after you   63   (show) around. I want my museum to be the best of its kind   64   it opens to all schoolchildren. This is Mr Tom Silver, my assistant. He will be your guide now. I’ll be with you in an hour and a half. Enjoy   65  . See you.

考点:序数词
题型:完形填空

已知函数f(x)=x+x3,x1,x2,x3∈R,x1+x2<0,x2+x3<0,x3+x1<0,那么f(x1)+f(x2)+f(x3)的值(  )

A.一定大于0

B.一定小于0

C.等于0

D.正负都有可能

题型:完形填空

小李拿到四张大小、质地均相同的卡片,上面分别标有数字1,2,3,4,他将标有数字的一面朝下扣在桌子上,从中随机抽取一张(不放回),再从桌子上剩下的3张中随机抽取第二张.

(1)用画树状图的方法,列出小李这两次抽得的卡片上所标数字的所有可能情况;

(2)计算小李抽得的两张卡片上的数字之积为奇数的概率是多少?

题型:完形填空

关于胶片本底灰雾(D)的叙述。错误的是 ()

A.D位于特性曲线的起始点

B.D由片基密度和乳剂灰雾组成

C.D是胶片曝光后产生的最小密度值

D.D与乳剂感光中心的大小和数目有关

E.D是照射量为零时照片具有的密度值

题型:完形填空

期刊内容定位应采取的原则包括()。

A.差异原则

B.需求原则

C.导向原则

D.社会原则

E.优势原则

题型:完形填空

关于时区的叙述不正确的是()

A.全球共分成24个时区

B.东经7°属于东时区

C.东八区的中央经线是东经120°

D.西经52°属于西三区

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