下列实验操作错误的是( ) A. 称取氯化钠固体 B. 读液体体积 C.

题型:选择题

问题:

下列实验操作错误的是(  )

A.

称取氯化钠固体

B.

读液体体积

C.

引燃酒精灯

D.

检查气密性

考点:称量器—天平测容器—量筒加热器皿—酒精灯装置气密性检验
题型:选择题

城市往往有自己的兴起条件,下列关于城市优势区位的叙述,正确的有

    ①上海位于河流入海口    ②武汉位于长江和汉江交汇处

    ③扬州因其悠久的文化而兴起旅游业    ④赣州位于赣江与长江交汇处 [ ]

A、①②

B、①④

C、①③

D、②③

题型:选择题

When Paul was a boy growing up in Utah, he happened to live near a copper smelter(炼铜厂), and the chemicals that poured out had made a wasteland out of what used to be a beautiful forest. One day a young visitor looked at this wasteland and called it an awful area. Paul knocked him down. From then on, something happened inside him.

Years later Paul was back in the area, and he went to the smelter office. He asked if they had any plans or if they would let him try to bring the trees back. The answer from that big industry was “No.”

Paul then went to college to study the science of plants. Unfortunately, his teachers said there weren't any birds or squirrels to spread the seeds. It would be a waste of his life to try to do it. He was told everyone knew that even if he was knowledgeable as he had expected, he wouldn't get his idea accepted.

Paul later got married and had some kids. But, his dream would not die. And then one night he did what he could with what he had. Under the cover of darkness, he went secretly into the wasteland and started planting.

And every week, he made his secret journey into the wasteland and planted trees and grass. For fifteen years he did this against the plain common sense. Slowly rabbits appeared. Later, as there was legal pressure to clean up the environment, the company actually hired Paul to do what he was already doing.

Now the place is fourteen thousand acres of trees and grass and bushes, and Paul has received almost every environmental award Utah has. It took him until his hair turned white, but he managed to keep that impossible vow(誓言) he made to himself as a child.

小题1:When Paul was a boy, _________.

A.he had decided never to leave his hometown

B.the economy of Utah depended on the copper smelter

C.he had determined to stop the copper smelter polluting the area

D.no laws were made to protect the environment against pollution小题2:Why did Paul go to college to study the science of plants?

A.He wanted to find out the best way to save the area himself.

B.He was interested in planting trees since he was young.

C.He wanted to get more knowledgeable people to help him.

D.He thought his knowledge would make his advice more persuasive.小题3:What does the underlined phrase “the plain common sense” in paragraph 5 probably refer to?

A.That his normal work and life would be greatly affected.

B.That it was impossible for trees to grow on the wasteland.

C.That no one would like to join him in the efforts.

D.That he had to keep everything he did secret.小题4:The message of the passage is that ___________.

A.perseverance(持之以恒) will work wonders

B.action speaks louder than words

C.God helps those who help themselves

D.many hands make light work.

题型:选择题

a除以5余1,b除以5余4,如果3a>b,那么3a-b除以5余几?()

A.1

B.2

C.3

D.4

题型:选择题

《破产法》与破产程序的关系是整体与部分的关系,《破产法》是破产程序的一个重要内容。()

题型:选择题

下列关于肾癌不正确的说法是()

A.主要症状为无痛血尿和肿块

B.IVP可阴性

C.可继发肾积水

D.肾盏破坏及受压

E.肿瘤无钙化

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