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【单选题】
最小照度也称成像灵敏度,是指CCD对环境光线的敏感程度,其( )。
A.
单位为mm，数值越大表示需要的光线越少
B.
单位为lux，数值越小表示需要的光线越少
C.
单位为lux，数值越大表示需要的光线越少
D.
单位为mm，数值越小表示需要的光线越少
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举一反三
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A knife.
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【多选题】假定市场上某种商品最多的成交价格为每公斤4.6元,则每公斤4.6元为( )
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【单选题】听力原文：M: There are some interesting shells on the beach today. W: What if we collect some after lunch? Q: What did the woman mean? (17)
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She was asking the man a question.
B.
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C.
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D.
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【单选题】马斯洛认为人生追求的最高目标是()
A.
自我实现需要
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【单选题】听力原文：W: My bag was robbed，sir. M: What's in your bag? W: In it there is some money and my cell phone. M: We'll try to arrest the robber. Q: What's in the woman's bag? (23)
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【单选题】马斯洛认为人生追求的最高目标是( )
A.
社交需要
B.
安全需要
C.
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自我实现需要
查看完整题目与答案
【多选题】假定市场上某种商品最多的成交价格为每公斤4.6元,则每公斤4.6元为( )
A.
可用来代表这种商品的一般价格水平
B.
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D.
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查看完整题目与答案
【单选题】马斯洛认为人生追求的最高目标是( )
A.
自我实现需要
B.
生理需要
C.
社交需要
D.
尊重需要
查看完整题目与答案
【单选题】听力原文：M: There are some interesting shells on the beach today. W: What if we collect some after lunch? Q: What did the woman mean? (17)
A.
She was asking the man a question.
B.
She asked the man to collect some shells for lunch.
C.
She suggested that they go to the seaside to collect some shells.
D.
She suggested that they go to the beach early in the morning.
查看完整题目与答案
【单选题】听力原文：M: Right, class begins. There are some changes to your exam timetable. Your math exam will be changed to the next day. W: You mean the 18th? M: Yes, and the exam will start and end one hour earli...
A.
Exam results.
B.
Time for the exam.
C.
Change of class hours.
查看完整题目与答案