造成麻痹性肠梗阻的原因是
A.机械因素B.动力因素C.血运因素D.外伤因素E.神经因素
参考答案:B
My mother asked me to go shopping yesterday. In this sentence" to go shopping" is_____.
A.Object
B.Predicative
C.Adverbial
D.Object complement
男,40岁,黄疸,肝脾肿大半年,进食时突然呕吐暗红色液体300ml,其病因可能为
A.食管静脉曲张破裂
B.食管贲门粘膜撕裂综合征
C.食管癌
D.急性胃粘膜损伤
E.胃体上部溃疡