-（-3）=______，|-25|=______，25=______．_爱下问搜题

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问题填空题

-（-3）=______，|-

2

5

|=______，

25

=______．

答案

∵负数的相反数是整数，

∴-（-3）=3，

∵负数的绝对值是整数，

∴|-

2

5

|=

2

5

，

∵5²=25，

∴

25

=5

故答案为3，

2

5

，5．

阅读理解

根据短文内容，判断句子对(√)错(×)。

In My Dreams (梦)
In my dreams......

I can fly (飞).

I can cook (烹饪).

I can drive (驾驶).

Sweet (甜美的) dreams!

( ) 1. In his dreams, he can walk.
( ) 2. In his dreams, he can fly.
( ) 3. He can't swim in his dreams.
( ) 4. The dreams are sweet.

问答题简答题

请列举直埋光缆敷设的步骤。