下列不能构成征用、占用林地的情形有()。A.某国有企业依法在林地开采矿产 B.某公司

题型:单项选择题

问题:

下列不能构成征用、占用林地的情形有()。

A.某国有企业依法在林地开采矿产

B.某公司在林地自建房屋

C.某农民开垦宜林荒山种植农作物

D.某林场非法将防护林砍伐后种植经济林

考点:行政执法考试森林公安执法综合练习森林公安执法综合练习题库
题型:单项选择题

采用充填采矿法回采矿石时,要用充填材料充填回采空间,实现采场地压控制。充填体的作用是()。

A.避免矿石贫化

B.提高矿石运输效率

C.减少围岩暴露面积

D.降低地表下沉

题型:单项选择题

富含维生素A的食物是()。

A.粮谷类

B.动物肝脏

C.猕猴桃

D.奶及奶制品

E.马铃薯

题型:单项选择题

阅读理解

     It's hard to avoid looking like a fool on April Fool's Day.On April 1 each year, people play tricks on

each other.These tricks are usually silly rather than mean.Classmates sometimes tie each other's shoelaces

to their chairs.Teachers might hand out an impossibly difficult surprise test that scares students before they realize it's only a joke.Newspapers announce fake contests (such as "Win an elephant!") and report on

fake stories (like "UFO" lands in New York City).

     Forget gifts, songs and special foods-those are for the other holidays of the year.On April Fool's Day,

the only tradition is to laugh (and maybe to cause a little bit of trouble).

     One April Fool's Day, when I was in high school, a group of students in my class played a very clever

and funny trick on the teachers.They bought some chickens and set them free in our school cafeteria.The

chickens ran all round the school, in and out of classrooms and under our feet. Feathers were flying

everywhere.

    Teachers began running after the chickens, trying to catch them.Finally, they caught four of them.But

the chickens were wearing numbered tags (商标) around their necks, and the teachers discovered that

they had only caught chickens No.1, 2, 3, and 5.Where was chicken No.4?

     The teachers looked and looked.They couldn't find another chicken.After a few hours, they realized

that the students had played another joke on them: There were only four chickens in the first place!

They've been tricked by the numbers on the chickens.

     It's been a long time since I was in high school, but that April Fool's Day remains one of my favorite

memories from those years.

1. What can we infer from the first paragraph on April Fool's Day?

A. Everyone is hard to avoid being fooled on April Fool's Day.

B. Students play jokes on teachers on April Fool's Day.

C. Teachers play tricks on students on April Fool's Day.

D. Newspapers often cheat people.

2. Why did students set chickens free?

A. They wanted to let chickens free.

B. They wanted to let chickens run all round the school.

C. They wanted to see feathers flying.

D. They wanted to play a trick on teachers.

3. How many jokes did the students play on teachers?

A. One.  

B. Two.

C. Three.  

D. Four.

4. What's the title of the passage?

A. An unforgettable April Fool's Day

B. April Fool's Day

C. The origin of April Fool's Day

D. What do people do on April Fool's Day?

题型:单项选择题

把十进制数215转换成二进制数,结果为()。

A.10010110

B.11011001

C.11101001

D.11010111

题型:单项选择题

计算题:5mm×10mm×55mm缺口深度为2mm的夏比U型缺口冲击试样,消耗的冲击功为200J,计算ak(J/cm2)。

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