呕吐物为咖啡色多见于()
A.Mallory-Weiss综合征
B.十二指肠溃疡
C.胃溃疡
D.妊娠呕吐
E.食管静脉曲张破裂出血
参考答案:B, C, E
—Mum, I'm tired.
—Well, if you ________ go to bed after midnight every night, what do you expect?
A.will
B.may
C.should
D.can
保密天使业务申请(客户)范围()。