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【判断题】
系统软件主要包括操作系统、语言处理程序、支撑服务程序、数据库管理系统和应用软件。( )A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】According to the information, what should employees do if they need to have more details?
A.
Visit an authorized dealer
B.
Show their employee identifications
C.
Contact the customer service department
D.
Call a local department store
【简答题】A．They can make them rich. B．They need more people to work for them. C．They need their money to do business. D．Some people win and some lose.
【简答题】A．They need to make more efforts. B．They'll have more work to do tomorrow. C．The others have done the greater part of it. D．They've finished more than half of it.
【单选题】Q: Why do they need to sell new products?
A.
To have more products to sell.
B.
To be like other companies.
C.
To keep their customers happy.
D.
To bring in more customers.
【单选题】Why do they need more company catalogues?
A.
To use them at the conference
B.
To distribute them to the candidates
C.
To send them to the branch office
D.
To send them to their customers
【简答题】A/D 转换器的主要技术参数有: _____________ 、 _____________ 和 _____________ 。
【简答题】A/D转换器和D/A 转换器的主要技术参数是_________和转换速度。
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