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【简答题】
光电式传感器是利用光敏元件将 ( ) 信号转换为( ) 信号的装置。
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参考解析：
知识点：
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【简答题】B2C 类的教育网站有什么特点?
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【单选题】The teacher found nobody but Jack         in the room.
A.
sit
B.
seat
C.
seating
D.
seated
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【单选题】Nobody but Jane the secret.
A.
know
B.
knows
C.
have known
D.
is known
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【单选题】Nobody but the two naughty boy .
A.
are laughing
B.
laugh
C.
were laughing
D.
is laughing
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【多选题】下列票据可以背书转让的有（）
A.
现金支票
B.
转账支票
C.
银行本票
D.
银行汇票
E.
商业汇票
查看完整题目与答案
【多选题】下列票据可以背书转让的有（）
A.
现金支票
B.
转账支票
C.
银行汇票
D.
银行本票
E.
商业汇票
查看完整题目与答案
【简答题】It's no secret to us, but he alone is in the dark. It means ____. A．nobody but him knows the secret B．we all know the secret except him C．it's so dark that he can't see everything clearly D．only the n...
查看完整题目与答案
【多选题】下列票据可以背书转让的有 ( )
A.
现金支票
B.
转账支票
C.
银行汇票
D.
商业汇票
查看完整题目与答案
【单选题】Nobody but Jane the secret.
A.
knows
B.
know
C.
have know
D.
is known
查看完整题目与答案
【单选题】Nobody but Jim and his uncle .
A.
know who is he
B.
know who he is
C.
knows who is he
D.
knows who he is
查看完整题目与答案
相关题目：
【简答题】B2C 类的教育网站有什么特点?
查看完整题目与答案
【单选题】The teacher found nobody but Jack         in the room.
A.
sit
B.
seat
C.
seating
D.
seated
查看完整题目与答案
【单选题】Nobody but Jane the secret.
A.
know
B.
knows
C.
have known
D.
is known
查看完整题目与答案
【单选题】Nobody but the two naughty boy .
A.
are laughing
B.
laugh
C.
were laughing
D.
is laughing
查看完整题目与答案
【多选题】下列票据可以背书转让的有（）
A.
现金支票
B.
转账支票
C.
银行本票
D.
银行汇票
E.
商业汇票
查看完整题目与答案
【多选题】下列票据可以背书转让的有（）
A.
现金支票
B.
转账支票
C.
银行汇票
D.
银行本票
E.
商业汇票
查看完整题目与答案
【简答题】It's no secret to us, but he alone is in the dark. It means ____. A．nobody but him knows the secret B．we all know the secret except him C．it's so dark that he can't see everything clearly D．only the n...
查看完整题目与答案
【多选题】下列票据可以背书转让的有 ( )
A.
现金支票
B.
转账支票
C.
银行汇票
D.
商业汇票
查看完整题目与答案
【单选题】Nobody but Jane the secret.
A.
knows
B.
know
C.
have know
D.
is known
查看完整题目与答案
【单选题】Nobody but Jim and his uncle .
A.
know who is he
B.
know who he is
C.
knows who is he
D.
knows who he is
查看完整题目与答案