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【判断题】
当红外辐射照射在某些半导体材料的 PN 结上时,在结内电场的作用下,自由电子移向 P 区,空穴移向 n 区。如果 PN 结开路,则在 PN 结两端便产生一个附加电势,称为光生电动势。
A.
正确
B.
错误
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参考答案：
举一反三
【单选题】Questions 26 to 30 are based on the following passage. Exercise is one of the few factors with a positive role in long-term maintenance of body weight. Unfortunately, that message has not gotten thro...
A.
agree that the calories in a small piece of pastry can be difficult to work off by exercise
B.
partially believe diet plays a supporting role in weight reduction
C.
are not fully convinced that dieting can help maintain one’s new weight
D.
are not sufficiently informed of the positive role of exercise in losing weight
查看完整题目与答案
【判断题】Bread and pastry can be found in a bakery.
A.
正确
B.
错误
查看完整题目与答案
【单选题】五行相乘的基本概念是
A.
母病其气有余而乘其子
B.
子病其气有余而乘其母
C.
其气有余则乘己所胜
D.
其气有余则乘己所不胜
E.
其气不及则己所胜者侮而乘之
查看完整题目与答案
【单选题】会计风险( )。
A.
是把外币折算成本币的会计处理业务导致的账面金额的变动
B.
是由于财务会计决策不当引起的
C.
是由于会计处理方法的变更引起的
D.
是在清算、交割时出现的风险
查看完整题目与答案
【简答题】Fill in the blanks with appropriate articles: ( a, the, /) Captain Ben Fawcett has bought (1)____ unusual taxi and has begun (2) ____ new service. (3)____ 'taxi' is a small Swiss aeroplane called a 'P...
查看完整题目与答案
【简答题】This wonderful plane can carry seven __________. Captain Fawcett's first passenger was a doctor who __________ from Birmingham to a lonely village in the Welsh mountains. Since then, Captain Fawcett h...
查看完整题目与答案
【单选题】单选题交易风险不包括()
A.
会计风险
B.
报价风险
C.
供货风险
D.
收款风险
查看完整题目与答案
【单选题】( )35.在客人准备点菜时,服务员应立即走上前询问:“______”
A.
您可以点菜了吗？
B.
我可以为您点菜了吗？
C.
您现在想点菜吗？
D.
现在可以点菜吗？
查看完整题目与答案
【单选题】根据上图回答问题: a与a`,b与b`,c与c`,d与d`分别互称为( )
A.
姐妹染色体
B.
非姐妹染色体
C.
同源染色体
D.
非同源染色体
查看完整题目与答案
【单选题】( )56. This wonderful plane can carry 700 passengers.
A.
放置
B.
搭载；容纳
C.
陪伴
查看完整题目与答案
相关题目：
【单选题】Questions 26 to 30 are based on the following passage. Exercise is one of the few factors with a positive role in long-term maintenance of body weight. Unfortunately, that message has not gotten thro...
A.
agree that the calories in a small piece of pastry can be difficult to work off by exercise
B.
partially believe diet plays a supporting role in weight reduction
C.
are not fully convinced that dieting can help maintain one’s new weight
D.
are not sufficiently informed of the positive role of exercise in losing weight
查看完整题目与答案
【判断题】Bread and pastry can be found in a bakery.
A.
正确
B.
错误
查看完整题目与答案
【单选题】五行相乘的基本概念是
A.
母病其气有余而乘其子
B.
子病其气有余而乘其母
C.
其气有余则乘己所胜
D.
其气有余则乘己所不胜
E.
其气不及则己所胜者侮而乘之
查看完整题目与答案
【单选题】会计风险( )。
A.
是把外币折算成本币的会计处理业务导致的账面金额的变动
B.
是由于财务会计决策不当引起的
C.
是由于会计处理方法的变更引起的
D.
是在清算、交割时出现的风险
查看完整题目与答案
【简答题】Fill in the blanks with appropriate articles: ( a, the, /) Captain Ben Fawcett has bought (1)____ unusual taxi and has begun (2) ____ new service. (3)____ 'taxi' is a small Swiss aeroplane called a 'P...
查看完整题目与答案
【简答题】This wonderful plane can carry seven __________. Captain Fawcett's first passenger was a doctor who __________ from Birmingham to a lonely village in the Welsh mountains. Since then, Captain Fawcett h...
查看完整题目与答案
【单选题】单选题交易风险不包括()
A.
会计风险
B.
报价风险
C.
供货风险
D.
收款风险
查看完整题目与答案
【单选题】( )35.在客人准备点菜时,服务员应立即走上前询问:“______”
A.
您可以点菜了吗？
B.
我可以为您点菜了吗？
C.
您现在想点菜吗？
D.
现在可以点菜吗？
查看完整题目与答案
【单选题】根据上图回答问题: a与a`,b与b`,c与c`,d与d`分别互称为( )
A.
姐妹染色体
B.
非姐妹染色体
C.
同源染色体
D.
非同源染色体
查看完整题目与答案
【单选题】( )56. This wonderful plane can carry 700 passengers.
A.
放置
B.
搭载；容纳
C.
陪伴
查看完整题目与答案
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