20 ----How can I use this washing machine?----Well,just refer to the _C____.

问题描述:

20 ----How can I use this washing machine?----Well,just refer to the _C____.
A explanations B expressions C introductions D directions
请高手给个确切的答案,在讲下其中的语法知识,为什么不选D呢,

direction是方位名词,而introduction,是introduce的名词形式,从字面上不难看出两者的区别.另外,你可以留意下,有点商品上附有英文的,需要你注意的,也是用的introductions.