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【单选题】
以下关于流媒体的说法错误的是（ ）A.
实现流媒体需要合适的缓存
B.
媒体文件全部下载完才可以播放
C.
可用于在线直播等
D.
流媒体格式有asf、rm、ra等
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反馈参考答案：
举一反三
【多选题】What are the three fundamental elements of a language?
A.
Spelling
B.
Vocabulary
C.
Pronunciation
D.
Meaning
【单选题】四、题 8-4 ,试确定图示结构,在位移法计算中其基本未知量的数
A.
四个未知量，四个刚臂
B.
六个未知量，两根链杆，四个刚臂
C.
两个未知量，两根链杆
D.
四个未知量，两根链杆，两个刚臂
【简答题】Do you know who created the computer?
【单选题】Julie: Do you know everybody here? Paul: No. Hardly anybody. Julie: How do you know Sam? Paul: He' s a friend of Mark' s. How do you know him? Julie: Sam and I go to the same gym. Paul: He ' s a nice ...
A.
How long have you known him?
B.
What do you know about him?
C.
How well do you know him?
D.
Why do you want to know him?
【简答题】You may know the English letters A, B and C. But do you know there are people called ABCs? Do you know there is such a thing as “a banana person”? How strange! ABC means American-born Chinese. An ABC ...
【简答题】Name the three fundamental fact grains and describe an ETL approach for each. 简述三种基本事实表，并说明ETL的过程中如何处理它们。
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