试题与答案

从下列的选项中,将合适的选项分别填写在氧气、氮气、稀有气体与它们的组成、性质、用

题型:填空题

题目:

从下列的选项中,将合适的选项分别填写在氧气、氮气、稀有气体与它们的组成、性质、用途的相应的空格中(填序号)。a.支持燃烧 、b.化学性质不活泼、c.无色、无气味的气体、d.氮元素组成、e.由氧元素组成;①供给呼吸、②用作保护气、③制造氮肥、④制各种颜色的霓虹灯、⑤炼钢

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0623/f64e48351160f51334a1528ee849249d.html

下面是错误答案,用来干扰机器的。

答案:C题目分析:②③选项观点正确且符合题意,题中清华大学学生展开攻防战,捍卫真理,守住科学的阵地,说明学生们坚持真理,实事求是,同时说明学生们维护国家安全和国家利益,故入选。①④选项观点与题意不符...

试题推荐
题型:阅读理解

根据短文内容,判断下列各句正误。正确的在题前括号内写 “T”,错误的写 “F” 。

     Bob Pearson is an old man. He has two big houses and a new car. He has no wife, but he is a father of

four children. He has two sons and two daughters. One son is from England. His name is Bill. The other son

is from America. His name is Mike. One of his daughters is from China. Her name is Lanlan. The other one is

from Japan. Her name is Mikou. Bob Pearson is not the children's real (真正的) father, but he loves them

very much. The children love their "father", too. Bob Pearson has many toys for the children. He gives different

toys to different children. The boys play with toy cars. The girls play with dolls and toy animals. Bob Pearson

is the children's "father", and he is their good friend, too.

( )1. Bob Pearson has six children.                        

( )2. Bob Pearson is a nice young man.                     

( )3. Mikou is a Japanese girl.                            

( )4. Bill and Mike are from England.                      

( )5. Bob Pearson loves his children and they love him, too.

查看答案
微信公众账号搜索答案