单项选择题

水在密闭容器内定压加热，在汽化过程中的蒸汽是（）

A．饱和蒸汽
B．饱和水
C．湿蒸汽
D．过热蒸汽

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单项选择题

7. Australia Pavilion has the self-sealing steel and highly durable steel facade that can the Shanghai climate by developing an increasingly deep, red-ochre color.
A、keep up with
B、keep off
C、keep at
D、keep to

离群索居什么意思？离群索居怎么读？

答案：参考答案：
拼音：lí qún suǒ jū，简拼：lqsj
成语解释：索：孤单。离开集体或群众，过孤...