I was never _________ to receive a _________ result from my science teacher.

A. surprised ; disappointed                

B. surprised ; disappointing

C. surprising ; disappointed               

D  surprising ; disappointing

肺泡通气量是指（）

A.每分钟进出肺的气体量

B.进入肺泡能与血液进行交换的气体量

C.尽力吸气后所能呼出的气体量

D.每次吸入或呼出的气体量

E.无效腔的气体量