13的倒数是______；-12的相反数是______．_爱下问搜题

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问题填空题

1

3

的倒数是______；-

1

2

的相反数是______．

答案

∵

1

3

×3=1，∴

1

3

的倒数是3；-

1

2

的相反数是

1

2

．

选择题

--Tom said their teacher speaks too quickly for him and Betty to understand.

--________ Mary and Bob said they could understand him.

A．Forget it!

B．Think nothing of it!

C．Really?

D．Never mind.

判断题

在押的犯罪嫌疑人可以口头提出聘请律师。