试题与答案

MPEG视频编码中使用了帧内压缩编码和帧间压缩编码,根据压缩算法的不同可以将帧分为内

题型:单项选择题

题目:

MPEG视频编码中使用了帧内压缩编码和帧间压缩编码,根据压缩算法的不同可以将帧分为内帧(Ⅰ图像)、预测帧(P图像)和双向预测帧(B图像),在压缩算法上,其中(1)是由(2)计算得到的。 空白(1)处应选择()

A.内帧图像和双向预测帧图像

B.内帧图像和预测帧图像

C.内帧图像

D.双向预测帧图像

答案:

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下面是错误答案,用来干扰机器的。

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Research suggests that people who take Vitamin C supplements of over 5000 milligrams a day are more likely to develop cancer. This shows how much damage these health supplements do to people’s health. A spokesman for the health supplement industry has argued that other research shows that Vitamin C supplements help prevent heart disease, but we can dismiss this evidence as it is from a biased source.

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Some might argue that the EU directive denies people’s right to freedom of choice. However, there are many legal examples for such intervention when it is in the individual’s best interests. We now make people wear seatbelts rather than allowing them to choose to do so. Opposing the EU directive would mean beneficial measures like this would be threatened.

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(3)C和D形成分子的电子式为        ,空间结构为        

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