下列杠杆中,属于费力杠杆的是( ) A. 起子 B. 道钉撬 C. 筷子

题型:选择题

问题:

下列杠杆中,属于费力杠杆的是(  )

A.

起子

B.

道钉撬

C.

筷子

D.

钢丝钳

考点:杠杆的分类
题型:选择题

将画线部分的句子译成汉语, 将正确答案填写到下面的横线上。

     Do you have any hobbies? If students don't have any interest except school work, they may become boring

people. And that can influence their studies.

     Studying without relaxing isn't good for health. 1. We can't get good grades if we have bad health. We

should make use of our free time. We should do something we like.

     Some people like singing, taking photos and drawing pictures. 2. Other people prefer collecting stamps,

reading or shopping. I have a few hobbies, but my favorite one is collecting stamps. 3. I like it best because I

can learn a lot of things from stamps. Some people collect stamps because they can make money from the

stamps. But I am just interested in collecting them and enjoy looking at them when I am free. 

     4. Stamp collecting is becoming more and more popular all over the world. I know an Australian boy and a

French girl through the Internet. They all like collecting stamps. We show our stamps to each other online (网上). 5. That is so cool.

1. ____________________________________________________

2. ____________________________________________________

3. ____________________________________________________

4. ____________________________________________________

5. ____________________________________________________

题型:选择题

某种子公司向农民出售“优质”甜瓜种子,农民种后发现结出的瓜有好有坏,造成巨大的经济损失。经有关部门检验,确认该公司出售的甜瓜种子里掺了假。这一事件告诉我们[      ]

A.不讲诚信会损害他人利益

B.只有农民才是假货的受害者

C.弄虚作假可以获得更多的经济利益

D.只有发展市场经济才能杜绝虚假现象

题型:选择题

下列属于渗透性腹泻的是()

A.霍乱

B.急性肠炎

C.口服甘露醇

D.胃泌素瘤

E.阿米巴痢疾

题型:选择题

行气药多为( )

A.辛味
B.甘味
C.酸味
D.苦味
E.淡味

题型:选择题

在总账系统账表功能中查阅部门总账时,系统提供的查询方式有()。

A、按部门查询

B、按科目查询

C、按发生额查询

D、按科目和部门查询

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