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【多选题】
sy16-7透镜焦距测量实验中,怎样有效减小实验误差( )A.
调节各元件同轴
B.
多次测量数据
C.
用左右逼近法
D.
仔细观察最清晰的像
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【简答题】设计一个电压开关型丁类放大器，在2～30 MHz波段内向50Ω负载输送4 W功率。设VCC=36 V，VCE(sat)=1V，β=15。
【判断题】The primary purpose of the statement of cash flows is to report all major cash receipts (inflows) and cash payments (outflows) during a period.
A.
正确
B.
错误
【单选题】DS1302由VCC1或VCC2两者中的较大者供电,当VCC2>VCC1+0.2V时()。
A.
由VCC1和VCC2共同供电
B.
VCC1和VCC2都不供电
C.
由VCC1供电
D.
由VCC2供电
【单选题】Which of the following statements generally apply to the cash flows of a financing type project? I. nonconventional cash flows II. cash outflows exceed cash inflows prior to any time value adjustments...
A.
I and III only
B.
II and IV only
C.
I, II, and III only
D.
I, II, III, and IV
【简答题】An yst should most appropriately reclassify financing cash outflows as operating cash outflow is a firm has: A.financed its payables. B.securitized receivables. C.repurchased stock to offset dilut...
【判断题】Duration is a value and time weighted measure of maturity that considers the timing of all cash inflows from earning assets and all cash outflows associated with liabilities. It measures the average m...
A.
正确
B.
错误
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