（）具有对纵向运动物体有急速靠近或远离视点的效果，画面有强烈的动感。
A、标准镜头
B、变焦镜头
C、长焦镜头
D、广角镜头
参考答案：D
E-mail, as well as telephones, _____ an important part in daily communication.[ ]
A. is playing
B. have played
C. are playing
D. play
下列选项中，属于工资薪金所得的有( )。
A．劳动分红 B．托儿所补助费 C．独生于女补贴 D．差旅费津贴
