It is said this textbook is very popular among learners of English____it helps them to develop their
题目
It is said this textbook is very popular among learners of English____it helps them to develop their basic English skill.
A.in which B.in that C.so that D.such that
答案
B in that 是因为的意思,放在句子里是最通顺的,so that 和such that 意思是差不多的“以至于,这样”的意思,而in which是表示“在……里”不符合句子的意思.
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
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