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【判断题】
在标准压力下加热某物质,温度由 T 1 上升到 T 2 ,在此条件下应存在 Δ H=Q 的关系。A.
正确
B.
错误
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皮皮学刷刷变学霸
举一反三
【单选题】关于花岗岩性能描述正确的是( )。
A.
孔隙率小，吸水率大，耐酸腐蚀
B.
孔隙率小，吸水率小、，耐碱腐蚀
C.
孔隙率小，吸水率小、，耐酸腐蚀
D.
孔隙率大，吸水率小、，耐碱腐蚀
【单选题】Passage Two Questions 26 to 30 are based on the following passage. A few years ago it was fashionable to speak of a generation gap，a division between young people and their elders. Parents complained ...
A.
the generation gap suddenly appeared
B.
the generation gap is a feature of American life
C.
how people can reduce the generation gap
D.
many critics argue over the nature of the generation gap
【单选题】It was a ( )moment when the two sisters were reunited after 30 years.
A.
magic
B.
magician
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