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一位8421BCD码译码器的数据输入线与译码输出线的组合是4：10。()

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What does Gottlieb mean when he says, "The beauty of this is we can reach people when theyre out of their homes, moneys in their pockets and stores are still open"？

A. Customers are being influenced to spend money in shops.
B. Cabdrivers are rushing to buy his flat-panel TV screens.
Cabdrivers are watching his TVs.
D. Customers no longer knock their knees as they get into the taxis.

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The author implies that the result of outsourcing______.

A. is freedom to generate new ideas
B. is business-as-usual
C. is a collection of projects
D. is a core competence

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实验报告不需要标识参考文献。()

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二进制异步减法计数器的接法必须把低位触发器的Q端与高位触发器的CP端相连。()

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