男性，45岁。近半年来活动后气急，咳嗽无痰，有时发热，用抗菌药、祛痰止咳药无效，查体：双肺下部可闻均匀一致的细湿啰音，胸片示两肺中下肺野弥散网状结节状阴影，右胸腔少量积液。血乳酸脱氢酶增高。

该患可能出现哪一类型肺功能改变（）

A.阻塞性通气功能障碍

B.通气。血流比例失调

C.限制性通气功能障碍和弥散量减少

D.肺总量增加

E.最大通气量降低

根据句意和汉语注释，写出单词的正确形式。

小题1:_______ (污染) air does harm to our health. It’s necessary to keep the air fresh and clean.

小题2:Our success was far _______ (超过) what we thought possible.

小题3:This kind of disease _______ (传播) so quickly that it drew the government’s attention.

小题4:The man kept remembering English words every day until he was in his _______ (四十).