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【判断题】
A类火灾是指气体火灾,如煤气、天然气等。
A.
正确
B.
错误
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参考答案:
举一反三
【单选题】Who cannot sit in the House of Lords?
A.
Archbishops of Canterbury and York
B.
senior bishops of Church of England
C.
all the hereditary peers and peeresses
D.
life peers
【单选题】There is no _the fact that he is did igent.
A.
degying
B.
deny
C.
to deny
D.
denyed
【判断题】省级环境保护主管部门负责组织重大和特别重大突发环境事件的调查处理。
A.
正确
B.
错误
【单选题】在换热器中,间壁任一侧的对流传热速率 = 推动力 / 阻力,其中推动力是指
A.
两相流体温度差( T – T ˊ) ;
B.
冷流体进出口温度差( T 2 ˊ -T 1 ˊ ) ;
C.
热流体进出口温度差( T 2 -T 1 ) ;
D.
流体主体温度和管壁温度差( T – T W )或( T W ˊ – T ˊ)
【单选题】在换热器中,间壁一侧的对流传热速率 = 推动力 / 阻力,其中推动力是指( )。
A.
同除以流体的密度
B.
同乘以重力加速度
C.
同乘以流体的密度
D.
同除以重力加速度
【判断题】省级环境保护主管部门负责组织重大和特别重大突发环境事件的调查处理。
A.
正确
B.
错误
【单选题】Why did the author want to conceal the fact that he had seen the present?
A.
Because he did not think the present wonderful
B.
Because he didn’t want his sister to know that only he would have such a present
C.
Because he was not sure whether the present was for him
D.
Because he didn’t want to strike a blow against her mother’s happiness
【单选题】重大和特别重大突发环境事件的调查处理应由()负责组织。
A.
环境保护部
B.
省级环境保护主管部门
C.
事发地设区的市级环境保护主管部门
D.
人民政府
【单选题】对流传热速率=推动力/阻力,其中推动力是( )。
A.
壁面温度差
B.
流体温度和壁面温度差
C.
同一流体的温度差
D.
两流体的速度差
【简答题】A.They cannot sit still or control their actions. B.They cannot talk fluently. C.They cannot study well. D.They cannot express their ideas well.
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