Foreign language teaching is sometimes discussed in terms of three related aspects: approach,____, and technique.
method
B. aim
C. methodology
D. hypothesis

As for the general aim of a lesson, it may focus on the following ones except:

A.A
B.A
C.A
D.The

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10分钟分辨率为800×600、24位真彩色、每秒30帧的视频，其不压缩的数据量是()。

A12960000000B
B25920000000B
C103680000000B
D55296000000B

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