想向大家求教一下_吐槽灌水_北京外国语大学论坛

查看完整版本：想向大家求教一下

shuizhuzhiju

2012/12/9 2:25:48

不知有哪位大哥大姐可以为我解惑下！　
One problem is you're going to get Oxide of nitrogen,but _,I think. （c）
A.if one can remove that
B.whether one can remove that
C.one can remove that
D.that one can remove that 　

zhouhuajian2

2012/12/9 17:26:56

晕,没人！看来要上北大了