不属于网络资源客体的是()
A.通信线路
B.主机
C.程序
D.数据
参考答案:A
I prefer _____ at home to going to see a film. [ ]
A. stay
B. staying
C. to stay
D. stayed
静脉血栓的尾部是()
A.白色血栓
B.混合血栓
C.红色血栓
D.透明血栓
E.层状血栓