()是指摄影机沿着水平方向运动拍摄,根据机位与被摄体的相对关系,又可分为二者平行的横移、不平行的斜移和同步纵向运动的纵深移。
A. 推镜头
B. 拉镜头
C. 移镜头
D. 跟镜头
查看答案
Bridges and switches are Layer 2 devices that provide the same basic functionality but that also have some differences. Which two traits apply to switches only?()
A. supports Layer 2 VLANs
B. segment LANs
C. are faster because forwarding decisions are made on hardware
D. typically have fewer ports because forwarding decisions are made in software
E. flood frames out all port
在现实生活中,如果你在孤独寂寞的时候吟上一句“欲将心事付瑶琴,知音少,弦断有谁听。”那么这首词是出自谁人之手?