Compared with last year, our pay about ￥_爱下问搜题

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问题选择题

Compared with last year, our pay about ￥500 every month. [ ]

A. has increased by

B. has increased

C. increased by

D. increased to

答案

答案：A

填空题

滑动变阻器是通过改变接入电路的电阻丝的来改变电阻的。某滑动变阻器上标有“200 Ω 1A”字样，其中200Ω指的是，1A指的是。

单项选择题

世界上第一届世博会的标志性建筑是（）。

A、水晶宫

B、凡尔赛宫

C、埃菲尔铁塔

D、凯旋门