We hope that such a book ____is helpful to our research work
We hope that such a book ____is helpful to our research work is on sale.A.that B.as C.which D.till 我放进C,感觉还比较合适,却是错的,能不能帮我看看这题目,根据你的理解,解析和翻译下, 答案是选B,感觉很奇怪,估计不是such as 的结构~,就我个人觉得C应该比较合理,矛盾中,