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问题 选择题

“元元黎民，得免于战国”（《汉书》），材料表现班固认识到秦统一的意义是[ ]

A．使人民脱离了弱小的诸侯国

B．为我国长期的统一奠定了基础 

C．建立了统一的多民族的封建国家

D．使人民有相对安定的生产生活环境

答案

答案：D

选择题

生活中遇到下列问题，不涉及化学变化的是

A．臭氧用于饮水的消毒，医用酒精用于皮肤消毒

B．蜂、蚁蛰咬处涂抹稀氨水可止痒解痛

C．可用热的纯碱溶液去除油污

D．用四氯化碳可擦去圆珠笔油
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单项选择题

Timely decisions directly affect the ability of the project team to meet commitments to cost and schedule constraints. Therefore ______.

A) the project team must be able to make decisions or obtain fast decisions from upper management
B) functional department should make their decisions as quickly as possible
C) upper management should communicate decisions to the project team at least weekly
D) since consensus decision making is time consuming, provisions have been made for budget and schedule revisions
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