题目内容

How many CCDs are located in a single pass duplex ADF？（）

A. One
B. 2
C. 3
D. 4

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使用ADO数据模型时，使Recordset和Connection对象建立连接的属性是（）。

A. CommandType
B. Open
C. ActiveConnection
D. Execute

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硬盘存储器的特点是（）。

A. 由于全封闭，耐震性好，不易损坏
B. 耐震性差，搬运时注意保护
C. 没有易碎件，在搬运时不像显示器那样要注意保护
D. 不用时应套入纸套，防止灰尘进入

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When is it advisable to dump the waste toner from a technicians service vacuum？（）

A. When it is full.
B. It is not recommended.
C. Before performing preventative maintenance.
D. After each call.

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A customer has installed a new computer on their network. They can print to the printer but the option for duplex printing is not available. All other computers have the option. Which of the following is the cause of the problem？（）

A. The new computer is printing to the wrong IP address.
B. The new computer is using the wrong protocol.
C. The driver port is not setup correctly.
D. The option has not been selected on the driver.

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How many CCDs are located in a single pass duplex ADF？（）

A. One B. 2 C. 3 D. 4

使用ADO数据模型时，使Recordset和Connection对象建立连接的属性是（）。

硬盘存储器的特点是（）。

When is it advisable to dump the waste toner from a technicians service vacuum？（）

A customer has installed a new computer on their network. They can print to the printer but the option for duplex printing is not available. All other computers have the option. Which of the following is the cause of the problem？（）

A. One
B. 2
C. 3
D. 4