_______ it comes to Chinese films, we first think of the famous director Zhang Yimou.

A．When

B．While

C．After

D．Though

OSPF协议适用于4种网络。下面的选项中，属于非广播多址网络(Broadcast Multi-Access)的是 (10) 。

A．FDDI

B．Ethernet

C．FrameRelay

D．HDLC