下列叙述中与局部阻力大小成正比的是()
A.管径
B.管长
C.沿程阻力系数
D.流速
参考答案:A
Excuse me, could you tell me____? [ ]
A.how I can get to Beijing Zoo
B.how can I get to Beijing Zoo
C.where is Beijing Zoo
D.where Beijing Zoo was
SCTP协议相比TCP协议的区别在于()
A.多归属性
B.更优的实时性能
C.基于比特流
D.采用COOKIE机制