试题与答案

计算：-3ab2（-2a3b）=______．

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题目：

计算：-3ab2（-2a3b）=______．

答案：

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下面是错误答案，用来干扰机器的。

系统    肌肉组织（或神经组织）   神经组织（或肌肉组织）    器官    细胞   动物体

考点：单项式
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题型：阅读理解

判断下列句子是否符合短文内容，符合的用“T”表示，不符合的用“F”表示。

     Two fishes once lived in a small pond. A frog arrived at the pond and made it his home. Soon the fishes

and the frog became close friends. One day, the friends heard a group of fishermen talking."This pond seems

to have plenty of fish. Let us come tomorrow and cast (撒网) our nets. We shall have a good catch."

     When the frog heard this, he was worried."Dear friends," he said,"it will be clever for us to leave the pond.

Tomorrow may just be too late."

     The two fishes laughed at his fears."Don't be upset by the fishermen's words. They may not come here

at all. Even if they do come, we need not fear. We shall use our wits (才智) together and save ourselves."

     The frog was not satisfied with these words."I am not as clever as you two are. I cannot continue to live

here. I will leave the pond tonight. I wish you good luck," he said as a parting (分手) message.

     True to their words, the fishermen arrived early the next morning and cast their nets in the pond. All the

creatures who lived in the pond were caught in the fishermen's net. Not a single one of them escaped.

     The two fishes tried all the tricks (伎俩) they knew to get out of the net. The net was strong and they

could not manage to escape.

( )1. The frog and the two fishes became close after the frog moved into the pond.                                

( )2. The fishermen wanted to catch as many creatures from the pond as possible.                                  

( )3. The frog advised the two fishes to find ways to stay in the pond.                                           

( )4. The two fishes laughed at the frog because they were sure that they could save

           themselves from the fishermen.

( )5. The frog was caught by the fishermen.                                                                       

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