上消化大出血后患者多在24h内出现低热,一般持续()
A.1~2d
B.2~3d
C.3~6d
D.3~5d
E.>1周
参考答案:D
I wanted some paper but there was _____ in the house.
A.nothing
B.none
C.no one
D.not one
气逆最常见于()()二脏和胃。