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【单选题】
柴油机扫气箱防爆门的开启压力应不超过最高扫气压力的______。A.
1倍
B.
2倍
C.
4倍
D.
5倍
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反馈参考答案：
举一反三
【单选题】She told him of all her secret ( ) and ( ).
A.
hope; fear
B.
hopes; fear
C.
hopes; fears
D.
hope; fears
【单选题】Liz was accepted eventually by the headmaster David because she told the him ____________________
A.
she wanted to live a better life
B.
she used to take care of her mother, but she needed to take care herself now
C.
she could get to school on time
D.
all the above
【简答题】下列相对湿度测量仪表中( )种测量原理属于直接测量方法。 A．干湿球温度计 B．氯化锂温度计 C．氯化锂电阻湿度计 D．电子干湿球温度计 A． B． C． D．
【判断题】Stability constant ( K f ) is the equilibrium constant for the complex ion formation.
A.
正确
B.
错误
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