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【单选题】
Don Bruns of Lima, Ohio, and his 11-year-old son, Aaron, love baseball, and the Cincinnati Reds in particular. For, Aaron's birthday last October, his dad decided to drive him to Cincinnati more than two hours away, for the first game of the World Series. They had no tickets but hoped to buy a pair from scalpers. After arriving at Riverfront Stadium, the Brunses walked the streets for two hours. Aaron wearing a Reds cap, his father carrying a sign that said 'We Need 2 Tickets.' 'There were a lot of scalpers,' the father said.' But the cheapest ticket was $1075 a piece. I couldn't afford that.' And Aaron understood. Then the boy and his father were approached by Michael Teicher, who worked for a company that produces baseball highlight show for TV. Teicher pulled out a pair of tickets and handed them to Bruns. 'How much do you want?' Bruns asked. 'No charge,' said Teicher, 'Enjoy the game.' When asked later, Teicher explained: 'I was working for a man named Joe Podesta who hadn't missed a World Series in 16 years. (78) But he'd had a mild heart attack in September and couldn't make it this time. So he told me to give the two tickets away. The only ground rule he set was to give the tickets to people I thought would be thrilled.' Teieher walked around town for some time before seeing Don and Aaron Bruns. 'A lot of people looked like they might just take the tickets and sell them,' Teicher said, 'Then I saw this guy and his son, a nice-looking skinny kid with glasses, and he seemed very disappointed. (79) They reminded me of my dad and me when I was a kid. I would have died to go to a World Series game with my father. But I never did.' How important was it to Don Bruns and his son? Here is what Bruns said: 'It's the most memorable thing that ever happened to us. My boy and I must have turned to each other 30 times during the game and said 'I can't believe this.’ We'll never forget that night.' What is 'the Cincinnati Reds' according to the passage?
A.
A place
B.
A baseball team
C.
A stadiam
D.
A street
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【单选题】Some companies might not let you rent a car____you have a credit card.
A.
for
B.
because
C.
since
D.
unless
【多选题】嵌入式控制系统的设计以满足性能指标要求为基本前提,以下哪些是嵌入式控制系统常见的性能指标?
A.
可靠性,常用平均无故障时间来衡量。
B.
快速性,即系统对外部输入信号的响应速度。
C.
准确性,即系统对外部输入信号的跟踪能力。
D.
电磁兼容性,包括系统对外界电磁干扰的抑制能力以及系统本身的电磁辐射强度。
E.
稳定性,即系统对扰动信号的抑制能力。
F.
灵活性,即系统对外界变化的适应能力。
【单选题】主动防火系统中,自动灭火系统性能化设计的性能要求表述有误的是( )。
A.
建筑内设置的自动灭火系统应根据设置场所的用途、火灾危险性、火灾特性、环境温度和系统的性价比等比较后再确定
B.
建筑内设置的自动灭火系统应能够及时扑灭和控制建筑内的初期火灾,防止火灾蔓延和造成较大损失
C.
灭火系统的灭火剂应适用于扑救设置场所的火灾类型,且对保护对象的次生危害较小
D.
灭火系统的类型应与火灾发展特性、建筑空间特性相适应,并在设置场所的环境温度下能安全、可靠运行和有效灭火
【多选题】下列关于气体灭火系统的联动控制设计要求,表述正确的是( )。
A.
启动气体灭火装置的同时,应启动设置在喷洒管路上的压力开关
B.
启动气体灭火装置的同时,应启动设置在防护区入口处表示气体喷洒的火灾声光警报器
C.
气体灭火防护区出口外上方应设置表示气体喷洒的火灾声光警报器,指示气体释放的声信号应与该保护对象中设置的火灾声警报器的声信号有明显区别
D.
组合分配系统应首先开启相应防护区域的选择阀,然后启动气体灭火装置
【简答题】设计一燃烧炉时拟采用三层砖围成其炉墙,其中最内层为耐火砖,中间层为绝热砖,最外层为普通砖。耐火砖和普通砖的厚度分别为 0.5m 和 0.25m ,三种砖的导热系数分别为 1.02 W/(m· °C ) 、 0.14 W/(m· °C ) 和 0.92 W/(m· °C ) ,已知耐火砖内侧为 1000 °C ,普通砖外壁温度为 35 °C 。试问绝热砖厚度至少为多少才能保证绝热砖内侧温度不超过 9...
【判断题】通过交际可以使公关的主体同对象之间深入交往,促进感情的融通。
A.
正确
B.
错误
【判断题】通过交际可以使公关的主体同对象之间深入交往,促进感情的融通。( )
A.
正确
B.
错误
【多选题】下列关于气体灭火系统的联动控制设计要求,表述正确的是( )。
A.
启动气体灭火装置的同时,应启动设置在防护区入口处表示气体喷洒的火灾声光警报器
B.
组合分配系统应首先开启相应防护区域的选择阀,然后启动气体灭火装置
C.
启动气体灭火装置的同时,应启动设置在喷洒管路上的压力开关
D.
气体灭火防护区出口外上方应设置表示气体喷洒的火灾声光警报器,指示气体释放的声信号应与该保护对象中设置的火灾声警报器的声信号有明显区别
【单选题】Some companies might not let you rent a car ______ you have a credit card.
A.
where
B.
because
C.
since
D.
unless
【简答题】制动系统的设计要求是什么?
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