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【多选题】
光电摄像器件应具有的基本功能有（）A.
光电变换
B.
光电信号存储
C.
扫描输出
D.
光电二极管
E.
MOS电容
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举一反三
【单选题】The underlined words in the sentences below have at least two meanings. Look at how they are used and choose the correct meaning. The primary objective of the new legislation is to raise standards of ...
A.
most important or fundamental
B.
the name given to the education of children between the ages of five and 11
C.
medically, the beginning of growth or development
【简答题】________是顾客从拥有和使用产品中所获得的价值与为取得该产品所付出的成本之比.
【判断题】Jonas and Gabriel enjoyed themselves very much by meeting so many new things they never had the chances to look at in the community.
A.
正确
B.
错误
【单选题】What do the words 'a replica' in Paragraph 2 refer to? 查看材料
A.
A painting of the skeleton.
B.
A photograph of Lucy.
C.
A copy of the skeleton.
D.
A written record of Lucy.
【单选题】Some of the drawbacks of _____ test markets are that they can be very costly, and they can give competitors a chance to look at the company’s new ideas.
A.
standard
B.
controlled
C.
simulated
D.
Internet
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