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【单选题】
以下对视频格式的描述中,不正确的是________。A.
MPEG标准包括三个部分内容：MPEG视频、MPEG音频和MPEG系统
B.
MPEG格式是运动图像专家小组格式
C.
MPEG格式有MPEG-1、MPEG-2、MPEG-4、MPEG-7、MPEG-21几个压缩标准
D.
MPEG-2是为CD光盘介质定制的视频和音频压缩格式
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【单选题】听力原文：M: Being an efficient secretary, you should have to finish your work punctually at the office, not to do it now at home. W: I know that. But I have been very busy and I couldn't finish it when th...
A.
Classmates.
B.
Boss and secretary.
C.
Husband and wife.
D.
Teacher and student.
【单选题】关于二维数组的声明及初始化,下列错误的是( )
A.
int[][] a = new int[2][3];
B.
int[][] a = new int[2][];
C.
int[][] a=new int[][]{{1,2,4},{4,5},{6,7,8,9}};
D.
int[][] a = new int[][2];
【单选题】You should have a health（）if you work in a restaurant.
A.
diploma
B.
certificate
C.
license
D.
passport
【简答题】You should have to finish your work your own without relying on others’ support.A. on
【单选题】听力原文：M: Being an efficient secretary, you should have to finish your work punctually at the office, not do it now at home. W: I know that, my dear. But I have been very busy and I couldn't finish it w...
A.
Classmates.
B.
Boss and secretary.
C.
Husband and wife.
D.
Teacher and student.
【判断题】对于大多数工程机械,其执行动作往往较多。这就要求这些执行动作必须在时间上、在次序上应相互协调、相互配合,不能出现干涉,以保证该机械能完成预定的功能和生产过程。这方面的设计工作称为执行动作间的协调设计。
A.
正确
B.
错误
【判断题】对于大多数工程机械，其执行动作往往较多。这就要求这些执行动作必须在时间上、在次序上应相互协调、相互配合，不能出现干涉，以保证该机械能完成预定的功能和生产过程。这方面的设计工作称为执行动作间的协调设计。
A.
正确
B.
错误
【简答题】You should have i_______ at work, which means you should take actions positvely.
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