???

(?)?
1.???3
(1)?s
??????
???
?
1.?? ?4???
(1)????????35?1?????69?1????????????????????????????????????????
(2)?????????????????????????????(feculent vomitting)?????
(3)??,?M?????u???????????
(4)???????????????????????????
2.
(1)????????????????????
(2)??????
(3)??????????????????????????????????????????(tinkling)?(?)
(4)??????????????????
3.
????
(1).? ??90%??????????Y???????????????
(2).? ?????????x??????????
a.?s?????????????????????????????
b.? ????????????
(3).??? ????????????????
???
(1).?...