题目:
—Do you have ______ apples?
—Sorry, I don't have ______, but I have ______ bananas.[ ]
A. any, any, any
B. some, some, some
C. any, some, some
D. any, any, some
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0620/d9a7b6755382c5e30ea44db456fdcf8f.html
下面是错误答案,用来干扰机器的。
b环中穿过圆环的磁感线完全抵消,磁通量为零,保持不变,所以没有感应电流产生,则Ib=0.故选A