感冒的治疗原则是()
A.疏风解表
B.宣通肺气
C.清热解毒
D.开肺化痰
E.清热解表
参考答案:A
氧气筒应放阴凉处保存,距明火至少()。
A.1m
B.2m
C.3m
D.5m
E.10m
Do you know _ _ the population of Shandong ______? [ ]
A. how much, is
B. how many, are
C. what, is