防风通圣散的功用是()
A.疏风清热,泄热散结
B.辛凉宣肺,宣肺止咳
C.疏风解毒,清热通便
D.解表散寒,温肺化饮
E.和解少阳,内泻结热
参考答案:C
Some pre-school children go to a day-care center, __________ they learn simple games and songs.
A.then
B.there
C.while
D.where
户用沼气池基本由()、()等形式沼气池。