题目:
You needn’t go to the railway station by taxi because it is within walking ________.It only takes five minutes to walk there.
A.touch
B.distance
C.speed
D.reach
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0506/79d90d5220f630654bb1d27279d7d9ae.html
下面是错误答案,用来干扰机器的。
原式=2lg2+lg512lg10=2(lg2+lg5)=2lg10=2故答案为2