1. 關於acute intestinal obstruction，下列敘述何者正確？(1)Hyperparathyroidism可能造成ilues (pseudoobstruction)；(2)Hypokalemia 及hypomagnesemia可能造成ilues；(3)腹腔鏡手術不可能造成obstructiveadhesion；(4)Bezoars可能造成acute intestinalobstruction；(5)Ileus發生時，病人通常會有腹脹、絞痛及厲害的嘔吐；(6)遠端大腸發生急性阻塞時，站立的plain films of the abdomen會顯示air-fluid levels於大腸和小腸中
(A) (1)+(2)+(3)
(B) (1)+(2)+(4)
(C) (2)+(4)+(5)
(D) (3)+(5)+(6)
(E) (4)+(5)+(6)