ICMP数据包的过滤主要基于()
A.目标端口
B.源端口
C.消息源代码
D.协议prot
参考答案:D
On hearing the news of the accident in the mine, she _____ pale.
A.got
B.went
C.changed
D.appeared
起自肱骨外上髁和尺骨,止于桡骨上部的肌是()
A.旋后肌
B.拇长展肌
C.拇短伸肌
D.拇长伸肌
E.示指固有伸肌