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ISO制定的多媒体内容描述接口标准是（）。MP3声音压缩编码标准定义在（）标准中。 ISO制定的多媒体内容描述接口标准是（）。
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1080i和1080p都是HDTV所采用的图像格式，其中“1080”指的是（），“i”指的是（），“p”指的是（）。 1080i和1080p都是HDTV所采用的图像格式，其中“p”指的是（）。
若用8位机器码表示十进制整数-127，则其原码表示为（），补码表示为（）。 若用8位机器码表示十进制整数-127，则其补码表示为（）。
你单位委托培训机构对20名新同事进行为期4天的培训，但是培训机构说只能对10人进行2天的培训。你作为负责人，怎么处理？
B In choosing a friend, one should be very careful. A good friend can help you study. You can have fun together and make each other happy. Sometimes you will meet fair weather friends. They will be with you as long as you have money or luck, but when you are down, they will run away. How do I know when I have found a good friend I look for certain qualities of character, especially understanding, honesty and reliability. Above all else, I look for understanding in a friend. A good friend tries to understand how another person is feeling. He is not quick to judge. Instead, he tries to learn from others. He puts himself in the other persons place, and he tries to think of ways to be helpful. He is also a good listener. At the same time, however, a good friend is honest. He does not look for faults in others. He notices their good points. In short, a friend will try to understand me and accept me. Another quality of a friend is reliability. I can always depend on a good friend. If he tells me he will meet me somewhere at a certain time, I can be sure that he will be there. If I need a favor, he will do his best to help me. If I am in trouble, he will not run away from me. There is a fourth quality that makes a friend special. A special friend is someone with whom we can have fun. We should enjoy our lives, and we would enjoy our friendship. That is why I especially like friends who are fun to be with. A good friend likes the same things I like. We share experience and learn from each other. A good friend has a good sense of humor, too. He likes to laugh with me. That is how we share in the joy of being friends. And I know that he is looking for the same quality in me. When I meet someone who is reliable, honest, and understanding, I know Ive found a friend! Good friends need to .
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