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【单选题】
对于视频文件,下列描述不正确的是A.
WMV文件是微软推出的一种流媒体格式,一般同时包含视频和音频部分,音视频均采用WindowsMediaVideo编码
B.
AVI文件采用的压缩算法并无统一的标准,用不同压缩算法生成的AVI文件,必须使用 相应的解压缩算法解码器才能播放出来
C.
MPG/MPEG文件。MPG文件是按MPEG标准压缩的视频文件,是基于MPEG-1(VCD)或 MPEG-2(DVD)中的任一压缩标准出现的
D.
MP4 文件,以储存数字音频和数字视频为主,广泛应用于网上传输、光盘存储、语音发送、视频电话以及电视广播
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【简答题】Multiple Choice. 1. Mark often attempts to escape ____ whenever he breaks traffic regulations. a. having been fined b. to have been fined c. to be fined d. being fined 2. My wife said in...
【简答题】在空调负荷计算时，机械效率常看作（）。
【简答题】远离毒品的注意事项包括() A拒绝共用静脉注射器 B不接受娱乐场所“问题”香烟 C不接受娱乐场所“问题”饮料 D不接受娱乐场所“问题”糖果
【单选题】The implied equity risk premium is a forward- looking premium, estimated from the level of stock prices (the index) today and expected earnings/cash flows in the future. Assume that you compute the im...
A.
The ERP will go down
B.
The ERP will go down, if the earnings/ cash flows went up by less than 20% during the year
C.
The ERP will go down, if the earnings/ cash flows went up by more than 20% during the year
D.
The ERP will not change
E.
The ERP will go up
【单选题】多级齿轮传动中，各级传动比相等的分配原则适用于按()设计的传动链。
A.
最小等效转动惯量原则
B.
输出轴的转角误差最小原则
C.
重量最轻原则(小功率装置)
D.
重量最轻原则(大功率装置)
【单选题】多级齿轮传动中,各级传动比相等的分配原则适用于按()设计的传动链。
A.
重量最轻原则(小功率装置)
B.
输出轴的转角误差最小原则
C.
最小等效转动惯量原则
D.
重量最轻原则(大功率装置)
【简答题】These days when you go on vacation, you spend most of your money just getting there. Travel is expensive, but don't stay home only because you are short of money! Here is some advice: * Travel during ...
【简答题】Let there be no doubt ________ , though I disagree to the plan in some way , I ’ ll carry it out faithfully. A . that B . what C . if D . as 2 . Do you think that...
【简答题】预制阳台板类型,L型表示 。
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