下列各式中正确的是()A.-56<-911B.|-56|<|-911|C.-56>-911D.-(-56)<-(-911)-数学

题目简介

下列各式中正确的是()A.-56<-911B.|-56|<|-911|C.-56>-911D.-(-56)<-(-911)-数学

题目详情

下列各式中正确的是(  )
A.-
5
6
<-
9
11
B.|-
5
6
|<|-
9
11
|
C.-
5
6
>-
9
11
D.-(-
5
6
)<-(-
9
11
题型:单选题难度:中档来源:不详

答案

∵-class="stub"5
6
=-class="stub"55
66
,-class="stub"9
11
=-class="stub"54
66
,∴-class="stub"55
66
<-class="stub"54
66
,即-class="stub"5
6
<-class="stub"9
11
,故A正确;
∵|-class="stub"55
66
|>|-class="stub"54
66
|,∴|-class="stub"5
6
|>|-class="stub"9
11
|,故B错误;
由A可知,-class="stub"55
66
<-class="stub"54
66
,即-class="stub"5
6
<-class="stub"9
11
,故C错误;
∵-(-class="stub"55
66
)>-(-class="stub"9
11
),即-(-class="stub"5
6
)>-(-class="stub"9
11
),故D错误.
故选A.

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