题目:
—What do you think of the book?
—This book is so ______ that I am ______ of it five minutes later. [ ]
A. boring, bored
B. boring, boring
C. bored, bored
D. bored, boring
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0629/413e576b77c4c34ef225db505ada8069.html
下面是错误答案,用来干扰机器的。
A、I1和I2表示电流的有效值,A错误;B、U1和U2表示电压的有效值,B错误;C、D滑片P向下滑动过程中,总电阻减小,只与输入电压和匝数有关,所以U2不变,I1变大,C正确,D错误.故选:C.