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插秧规格行距、穴距前期以（）cm为主，后期以（）cm为主。

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对公业务收费收费基数主要包含（）。

A. 按笔数收费
B. 按金额收费
C. 按包月收费
D. 按年收费

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电气设备着火时，应首先切断电源，在电源未切断前，只准使用不导电的灭火器材灭火。（）

A. 正确
B. 错误

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适当减小副偏角和增大刀尖圆弧半径都能提高刀具强度，改善散热条件，使刀具耐用度增高。

A. 正确
B. 错误

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You are the desktop administrator for your company. Tom is a user in the company's accounting department. Tom uses a Windows XP Professional portable computer. Tom reports that when the computer is undocked, it randomly displays the following error message: "JZXDRV.DLL failed to load." You discover that the JZXDRV.dll file is used by the device driver for an external storage device that is connected to Tom's docking station. Tom reports that the error message does not appear when the computer is docked. You need to ensure that the error does not occur on Tom's computer. You also need to ensure that the storage device continues to function correctly when Tom's computer is docked. What should you do?（）

A. Remove the storage device from the hardware profile on Tom's computer.
B. Create a local user account for Tom on his computer.
Copy the JZXDRdll file to the profile folder for Tom's local user account. Instruct Tom to log on to his computer by using his local user account whenever the computer is undocked.
D. Copy the computer's default hardware profile to create a new hardware profile named Undocked. Remove the storage device from the Undocked hardware profile.
E. Copy the computer's default hardware profile to create a new hardware profile named Undocked. Disable the storage device in the Undocked hardware profile.
F. Instruct Tom to start the computer by using the Undocked hardware profile whenever the computer is undocked.

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