可引起持续性广泛性剧烈腹痛的是（）。
A.消化性溃疡
B.胆道蛔虫梗阻
C.肾结石
D.肠梗阻
E.急性弥漫性腹膜炎
参考答案：E
----Have you got any particular plans for the coming holiday?
----Yes. , I’m going to visit some homes for the old in the city.
A．If ever
B．If busy
C．If possible
D．If anything
()港口是水路运输的枢纽以及各种运输方式的连接点。
A．正确
B．错误
