竹叶石膏汤的治法是（）
A.辛寒清热
B.清热益气生津
C.清热和胃，益气生津
D.养阴清热生津
E.清热燥湿
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
D
