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Quantity A: [img]2022m10x/ct_ve01203002j_egreqbj_0003_221020[/img]Quantity B: 1
Quantity A: [img]2022m10x/ct_ve01203002j_egreqbj_0003_221020[/img]Quantity B: 1
游客
2025-02-23
16
管理
问题
Quantity A:
Quantity B: 1/3+1/4+1/7
选项
A、Quantity A is greater.
B、Quantity B is greater.
C、The two quantities are equal.
D、The relationship cannot be determined from the information given.
答案
A
解析
Quantity A是Quantity B的倒数。对于倒数来讲有这么一条原理:当数x>1,x>1/x,比如20>1/20;当0<x<1,那么x<1/x,比如1/10<10;如果x是负数的话则刚好相反,当-1<x<0,那么x>1/x,比如-1/10>-10;当x<-1,那么x<1/x,比如-2<-1/2;现在Quantity A和Quantity B都是正数,根据上面的原理,只要看Quantity B和1的比较,如果Quantity B大于1,那么就选B,否则选A。
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