急性阑尾炎上腹部及脐周疼痛是由于（）
A.胃肠道痉挛
B.腹膜炎症刺激
C.内脏功能紊乱
D.合并急性胃肠炎
E.内脏神经反射
参考答案：E
If I can run as _____ as Tom, both of us will be chosen to take part in the sports meeting. [ ]
A. fast
B. faster
C. fastest
D. the fastest
葡聚糖的功能有哪些？
