治疗牙痛属胃热阴虚者首选()
A.玉女煎
B.左金丸
C.大承气汤
D.葛根黄芩黄连汤
E.清胃散
参考答案:A
The flowers_______sweet in the botanical garden attract the visitors to the beauty of nature. (2004上海)
A.to smell
B.smelling
C.smelt
D.to be smelt
GK型三通阀701型试验台紧急制动试验中,制动缸压力由零升至最高值的时间应为()。
A.5~9s
B.9~14s
C.14~18s
D.15~20s