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【多选题】
某中频模拟信号的中心频率为70 MHz，带宽为10 MHz，若对此信号进行中频采样，则可以对该信号进行无频谱重叠采样的频率为（ ）。A.
20 MHz
B.
30 MHz
C.
150 MHz
D.
200 MHz
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【简答题】1)"spell it out": tell you 1 ; 2)"took his time" implies that Ogilvie intends to 2 her 3 and shows his 4 over them. 3)"challenging her objection": openly 5 her to object to his 6 . 4) "beyond wrinklin...
【判断题】"Just in time" means a company need carry large inventories in the event that demand spiked.
A.
正确
B.
错误
【单选题】燕山酒厂2019年8月销售粮食白酒3 000公斤，取得不含税价款100万元，包装物押金5万元，包装物2个月后归还厂家，则该酒厂应纳消费税税额（ ）万元。
A.
21.18
B.
26.37
C.
23.75
D.
24.25
【判断题】People have been talking about health for a long time because people know the importance of it. People's understanding of health also becomes deeper with the progress in scientific research. Recently ...
A.
正确
B.
错误
【判断题】People have been talking about health for a long time because people know the importance of it. People's understanding of health also becomes deeper with the progress in scientific research. Recently ...
A.
正确
B.
错误
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