假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的文章.文中共有10处错误,每句中最多有两处.错误涉及一个单词的增加删除或修改.

The news which the English Entrance Examination will be reformed has caused a big “earthquake” in our country. Many people, included students, are for it. But there are also some people are against it. Then, is it better to do so or not? Personally, I think the reform has between advantages and disadvantages. On the one hand, it can reduce students’ learn burden and enable English to return back to its true function. On the other hand, it will cause students to spend less time on studying English and to attached less importance to English. If so, students will not have a good knowledge of English. What’s more, if students don’t have so a good ability, they will not be able to broaden our horizon and meet the future challenges.

无菌制剂生产操作A级洁净区的相对湿度可控制在（）。

A.45%～60%

B.40%～70%

C.45%～65%

D.45%～75%