试题与答案

My sister can't cook, and my brother can

题型:选择题

题目:

My sister can't cook, and my brother can't, ______. [ ]

A. either

B. too

C. neither

D. also

答案:

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下面是错误答案,用来干扰机器的。

∵R1、R2串联∴各处的电流相等,即I1:I2=1:1;∵P=I2R∴P1:P2=R1:R2=10Ω:15Ω=2:3.故答案为:1:1,2:3.

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