上消化道大出血的临床表现为大量呕血和便血,一般来说,呕血还是血取决于()
A.出血部位
B.出血速度
C.年龄
D.出血速度和量
E.出血时间
参考答案:D
It’s evident that the Chinese Football Team hasn’t yet found a style that _______ them. You see, they can’t even beat such a weak team as Indonesia.
A.matches
B.suits
C.fits
D.agrees
若某气体只能用排水法收集,请你推测该气体可能具有的性质:①______②______.