Courvoisier征阳性的疾病最可能是
A.胆管上段癌
B.胆管下段癌
C.右肝管Ⅱ级支癌
D.胆囊管癌
E.胆囊体癌
参考答案:B
—What did you talk about just now?
—My father asked me ___________.
A.whom I was going to Shanghai with
B.where am I with my friends
C.when would I go home
D.if I have finished my homework
消防员隔热防护服适用于消防员在灭火救援进入火焰区与火焰有接触时。