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资本金、负债的含义

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It can be inferred from the final paragraph that______.

Ajayan is more concerned with results than "hows and whys"
B. Ajayan has not fully considered the applications of his invention
C. Ajayan will be approaching specific companies about using his invention
D. Ajayan could not have achieved all this without Anyuan Cao

简答建筑生产的技术经济特点

为了提高放大器的输入电阻、减小输出电阻,应该采用电压串联负反馈。()

555定时器组成的单稳态触发器是在TR端加入负脉冲触发的。()

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