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【多选题】
有用信息的特征包括（）A.
高质量
B.
及时
C.
准确
D.
完全
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举一反三
【单选题】Image compression is familiar to most users of computers in the form of image file extension,such as ________file extension is the lossy compression.
A.
bmp
B.
gif
C.
jpeg
D.
png
【简答题】The objective of image compression is to ________________________________________.
【单选题】_________ is the standard image file format in Windows operating system which uses bit map as storage format. In addition to optional image depth, it does not use any other compression.
A.
GI
B.
BMP
C.
JPEG
D.
PCX
【单选题】There is an image of 100 * 100 pixels, and the gray value of each pixel is represented in 8 bits. After Huffman coding, the image data is compressed to 40000 bits. The image compression ratio is ( ).
A.
2:1
B.
3:1
C.
4:1
D.
5:1
【简答题】总分类账户与明细分类账户的主要区别在于 A.记录经济业务的详细程度不同 B.核算的内容不同 C.记账的方向不同 D.记账所依据的会计凭证不同A. A
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