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【多选题】
以下关于信息压缩的叙述中,正确的是______。
A.
有损压缩广泛地运用于对图像、声音和视频的压缩
B.
运用压缩方式制作的VCD/DVD会损失一些画面质量
C.
JPG是静态图像的有损压缩格式,一般不影响视觉效果
D.
经过有损压缩处理的声音文件在还原成原音时,一般不会有质量的损失
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【判断题】个人述职报告侧重写干部个人履职期间的表现,要用写实性语言突出自己的德能勤绩廉,一般不与本单位的工作业绩、问题相掺杂。
A.
正确
B.
错误
【判断题】捕蝇草受到刺激后,电流达到一定的阈值会发生关闭或打开,这是一种短期记忆。
A.
正确
B.
错误
【简答题】阅读理解。 Football, to me, is more than just a . I have probably learned more than valuable lessons from it than from school. When I joined the team freshman year, I didn't realize what I was getting ...
【简答题】Football, to me, is more than just a . I have probably learned more than valuable lessons from it than from school. When I joined the team freshman year, I didn’t realize what I was getting into. ...
【判断题】GSM频率规划的7×3复用的意思是7个基站,每个基站3个扇区组成一个频率复用簇。
A.
正确
B.
错误
【简答题】Choose the best answer(根据短文内容,选择最恰当的答案): ( 12分) He was just an ordinary postman. Day after day, he shuttled(穿梭) back and forth across the village. For him, life was without waves. One day, he was deli...
【单选题】Success in soccer is more than just winning.
A.
Y
B.
N
C.
NG
【简答题】There is famous story about British poet Samuel Taylor Coleridge.He was writing a poem when he was interrupted by a knock at the door. This was an age before telephones.Someone was delivering a messag...
【简答题】已知函数f(x)=xlnmx(m>0),g(x)=﹣x 2 +2ax﹣3,且f(x)在x=e处的切线方程为2x﹣y﹣e=0, ①求m的值. ②若y=af(x),y=g(x)在区间[1,3]上的单调性相同,求实数a的取值范围. ③求证:对任意的x∈(0,+∞),都有 .
【单选题】In fact, it has just a history of ______.
A.
less than two hundred years
B.
more than a hundred years
C.
less than a century
D.
nearly a century
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