试题与答案

青少年社会工作的( )层面,是指组织和社区社会工作,或者是针对法规或政策而进行的倡

题型:单项选择题

题目:

青少年社会工作的( )层面,是指组织和社区社会工作,或者是针对法规或政策而进行的倡导或改变性工作。

A.个体

B.系统

C.宏观

D.中观

E.微观

答案:

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参考答案:D解析: 算法的时间复杂度是指算法需要消耗的时间资源。一般来说,计算机算法是问题规模n的函数f(n),算法的时间复杂度也因此记做T(n)=O(f(n))因此,问题的规模n越大,算法执行的时间的增长率与f(n)的...

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题型:阅读理解

There is a very special wolf that lives in Africa. They are actually called, the African wild dog, of painted dogs.

These animals live in open woodlands, or in the plains of Africa. Today, however, most of the animals can be found in eastern or southern Africa. These animals are beautiful. They have rounded ears instead of pointed like most dogs, and they have four toes (脚趾) on each of their four feet, also a unique characteristic because other dogs have five. Their fine fur is always different from each other. The fur is usually a combination of black, brown, red, and white, and sometimes even yellow. No wonder they’re called the painted wolf.

The African wild dog is a very social animal. They live in groups and have numbers from five to about twenty. The members of a group are always very close to one another. They communicate in their own language or body language. When someone is very old or sick, the others will help, and they are willing to share the food with the elders and with those who are weak, which is what we should learn from.

The family does everything together, from raising young, to sleeping together, to hunting. When they hunt, they will work together suing team work to kill animals that are larger than them.

They sometimes hunt farm animals. This is unfortunate, because both poachers (偷猎者), and people who own farms shoot the painted dogs who are just trying to survive.

Before, there used to be many large groups throughout the land, but now the African wild god is very rare. They are also losing their population because of their own loss of habitat thanks to human’s farming and forest cutting.

小题1:From the text we learn that the African wild dog         .

A.lives in the north of Africa

B.has sixteen toes altogether

C.has pointed ears like most dogs

D.lives in forests in groups小题2:Why do African wild dogs get the name “painted dogs”?

A.They all have colorful fur.

B.The dogs in the same group are of different colors.

C.Artists love to paint them in different colors.

D.None of them has the same color.小题3:According to the author, what should we learn from African wild dogs?

A.They always do everything together.

B.They help the sick, the elderly and the weak.

C.They are always very close to one another.

D.They communicate in their own language.小题4:Which of the following is NOT the reason why African wild dogs are becoming very rare?

A.Poachers kill some of them.

B.They are short of food sometimes.

C.They are losing their habitat.

D.Farmers shoot some of them.小题5:Where could this passage probably be found?

A.The Travelers

B.Fashion Weekly

C.Animal World

D.Star Magazine

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