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简述碎屑岩中石英存在形式.

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课程与教学评价有哪些功能?

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“5W1H”

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在年初，某公司发行了面值为1000美元的债券，息票利息每半年支付一次，息票率为8%，10年后到期。在债券发行时，市场年利率为12%。上述债券记录的初始负债金额最接近于（）

A. 771美元
B. 774美元
C. 1000美元

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You install Windows 2000 Professional on a new APM-compliant portable computer. You notice that whenever you attempt to shut down the computer, the Windows 2000 shutdown screen remains on the screen as the power remains on. You attempt to shut off the computer by using Power Button, but you want the computer to shut off when Windows 2000 Professional shuts down. What should you do? （）

A. Restart the computer, disable APM in the system BIOS, and then restart the computer.
B. Restart the computer, use power options in control panel to enable APM, and restart the computer.
C. Restart the computer, use power options in control panel to enable hibernate support, and then restart the computer.
D. Restart the computer, use power options in control panel to create a different power scheme, and then restart the computer.&e

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