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【单选题】
以下有关PNG文件格式的描述正确的是A.
PNG 可以支持索引色表和优秀的背景透明,它完全可以替代GIF格式
B.
PNG-24 格式支持真彩色,它完全可以替代JPEG格式
C.
PNG 是未来WEB图象格式的标准,它不仅是完全开放的而且支持背景透明和动画等
D.
由于PNG是一种新开发的文件格式,它需要浏览器软件的支持才可以正常浏览
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举一反三
【单选题】 III . Passages. Passage 1
A.
Helping film crews with the equipment at the beginning of his career.
B.
Working as editor’s assistant at the beginning of his career.
C.
Being refused repeatedly by production companies when shopping a screenplay.
D.
Struggling through 6 years of annoying, hopeless uncertainty.
【单选题】III .Passages. Passage 1
A.
About 79% of people.
B.
More than 43% of people.
C.
More than 70% of people.
D.
About 57% of people.
【单选题】III . Passages. Passage 2
A.
About 79% of people.
B.
More than 43% of people.
C.
More than 70% of people.
D.
About 57% of people.
【简答题】哺乳动物成熟的红细胞之所以成为研究质膜的结构及其与膜骨架的关系，主要原因是什么？
【简答题】简述莫尔强度理论。
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