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【单选题】
下列属于数字化图像采集方法的是()。 使用数码相机拍摄的图像 用传统的模式摄像机拍摄的图像 屏幕截图工具抓取到的画面 用扫描仪将纸张上的图片扫描输入A.
234
B.
123
C.
124
D.
134
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皮皮学刷刷变学霸
举一反三
【单选题】They ___ every means, but the engine __ work.
A.
tried; couldn't
B.
have tried; won't
C.
tried; won't
D.
have tried; can’t
【单选题】Every means , but none proved .
A.
have tried; a success
B.
have been tried; successful
C.
has tried; to be successful
D.
has been tried; successful
【单选题】Every possible means ____, but none ____ successful．
A.
has tried; has proved
B.
tried; proves
C.
has been tried; proves
D.
is being tried; is proved
【简答题】新民主主义社会的起止时间是 年到 年。
【单选题】_____many times, they succeeded _________ the experiment.
A.
Having tried; in doing
B.
Tried; in being done
C.
Having tried; to do
D.
Tried; doing
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