胃毕Ⅱ式术后输出段梗阻()
A.呕吐物为食物,无胆汁
B.呕吐物为胆汁,无食物
C.呕吐物既有胆汁,又有食物
D.呕吐物呈酸臭味,有宿食
E.无呕吐
参考答案:B
___ a letter, he decided to send a telegram.
A.Not receiving
B.Receiving not
C.Not having received
D.Having not received
头痛伴呕吐后明显减轻的是()
A.偏头痛发作
B.椎-基底动脉供血不足
C.小脑肿瘤
D.一氧化碳中毒
E.癔症性头痛