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【判断题】
光谱特性是光电元件的特性之一。A.
正确
B.
错误
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【单选题】What was Kodak’s fatal mistake?
A.
Its blind faith in traditional photography.
B.
Its failure to see Fuji photo’s emergence
C.
Its refusal to sponsor the 1984 Olympics.
D.
Its overconfidence in its corporate culture.
【多选题】安全分区是电力监控系统安全防护体系的基础结构。电力企业内部基于计算机和网络技术的应用系统原则上分为：生产控制大区：可再分为()和管理信息大区。
A.
控制区(安全区I)
B.
非控制区(安全区II)
C.
厂站信息区
D.
主控室信息区
【单选题】Knowing that the demand for wheat is inelastic, if all farmers voluntarily plowed under 10 percent of their wheat crop, then
A.
consumers of wheat would buy more wheat.
B.
wheat farmers would suffer a reduction in their revenue.
C.
wheat farmers would increase their revenue.
D.
the demand for wheat would decrease.
【单选题】Shari and Mary have a business that provides personal fitness training services. They know that after raising their prices from $40 to $60 per hour, the quantity of hours they spent delivering trainin...
A.
inelastic, with a price elasticity coefficient greater than one.
B.
inelastic, with a price elasticity coefficient less than one.
C.
elastic, with a price elasticity coefficient greater than one.
D.
elastic, with a price elasticity coefficient less than one.
【单选题】智能变电站一体化监控系统站控层的主要功能是（）。
A.
实时运行电气量检测，运行设备状态检测，操作控制命令执行
B.
汇总本间隔的实时数据信息；实施对一次设备的保护控制功能；实施操作同期及其他控制功能；执行数据的承上启下通信传输功能；
C.
通过两级高速网络汇总全站的实时数据信息，不断刷新实时库，按时登陆历史数据库；将有关信息送往电网调度中心或控制中心；接受电网调度或控制中心有关控制命令；具有在线可编程的全站操作闭锁控制功能。
D.
实施对一次设备的保护控制功能；通过两级高速网络汇总全站的实时数据信息，不断刷新实时库
【单选题】Individuals base their demand for an asset on
A.
the expected return the asset offers compared with the returns offered by other assets.
B.
the riskiness of the asset's expected return.
C.
the asset's liquidity.
D.
the expected return, how risky that expected return is, and the asset's liquidity.
E.
the aesthetic qualities of the asset.
【单选题】What was Kodak's fatal mistake ?
A.
Its blind faith in traditional photography .
B.
Its failure to see Fuji Photo's emergence .
C.
Its refusal to sponsor the 1984 Olympics .
D.
Its overconfidence in its corporate culture .
【多选题】宏观监控系统网络设计方案中对监控总系统及子系统分别提出要求，以下说法正确的是( )。
A.
各子系统要求采集城市所辖的重大危险源信息
B.
监控总系统要求上国际互联网，建立自己的网络主页，以便子系统和其他授权用户可以在网上访问总系统的主页
C.
子系统将危险源信息和监察企业执行重大危险源安全管理有关规定的情况通过电话及时发送给监控总系统
D.
各子系统应在各城市的地理信息系统(电子地图)上进行危险源信息的统计、报表以及多媒体信息显示
E.
各子系统应将危险源信息和监察企业执行重大危险源安全管理有关规定的情况及时发送给监控总系统
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