下列各式中正确的是()A.|-0.1|<|-0.01|B.|-13|<15C.23<|-45|D.|-19|>+12-数学

题目简介

下列各式中正确的是()A.|-0.1|<|-0.01|B.|-13|<15C.23<|-45|D.|-19|>+12-数学

题目详情

下列各式中正确的是(  )
A.|-0.1|<|-0.01|B.|-
1
3
|<
1
5
C.
2
3
<|-
4
5
|
D.|-
1
9
|>+
1
2
题型:单选题难度:偏易来源:不详

答案

A、错误,∵|-0.1|=0.1,|-0.01|=0.01,0.1>0.01,
∴|-0.1|>|-0.01|;
B、错误,∵|-class="stub"1
3
|=class="stub"1
3
=class="stub"5
15
class="stub"1
5
=class="stub"3
15
class="stub"5
15
class="stub"3
15

∴|-class="stub"1
3
|>class="stub"1
5

C、正确,|-class="stub"4
5
|=class="stub"12
15
class="stub"2
3
=class="stub"10
15
,∴|-class="stub"4
5
|>class="stub"2
3

D、错误,∵|-class="stub"1
9
|=class="stub"2
18
class="stub"1
2
=class="stub"2
18
,∴|-class="stub"1
9
|<+class="stub"1
2

故选C.

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