单项填空
题目
单项填空
It was in the lab ( ) was taken charge of by Professor Black ( )
they did the experiment.
a that where b which that c when that d which where
答案
选A
在由布莱克教授负责的实验室做实验
第1处填THAT,是因为the lab是take charge of 的宾语,
第2处填where,是代指they did the experiment的地点
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
最新试题
热门考点