呕吐常见的病因有()
A.乳食积滞
B.外邪犯胃
C.胃中积热
D.脾胃虚寒
E.肝气犯胃
参考答案:A, B, C, D, E
在工业用水的水质和水压要求与生活用水不同的情况下,有时可根据具体条件,除考虑统一给水系统外,还可考虑()给水系统。
A.分质
B.分压
C.分散
D.分压、分质
How does a coast radio station communicating by HF radio normally identify itself?()
A.By its subscriber number
B.By its call sign
C.By its MMSI
D.By its MID