毕Ⅰ式胃大部切除术后不可能的并发症是()
A.胃肠吻合口瘘
B.吻合口梗阻
C.残胃癌
D.十二指肠残端瘘
E.残胃出血
参考答案:D
On Christmas Eve, children are eager to know _______Father Christmas comes and puts presents into their stockings.
A.that
B.what
C.where
D.how
下列各组溶液,相互不能发生反应的是 [ ]
A.Ba(OH)2和H2SO4
B.K2CO3和BaCl2
C.Na2SO4和K2CO3
D.Ca(OH)2和K2CO3