单项选择题

A．He thinks it is better than studying at home.
B．Prefers to study than to go home.
C．He prefers to study at hom
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单项选择题
A．3 times.B．6 times.C．9 times.
A．3 times.
B．6 times.
C．9 times.
单项选择题
According to the passage , what happens when the temperature is increased in a closed container holding a liquid
A．The liquid and the gas phases become more similar.
B．The liquid and the gas become less dense.
C．The container expands.
D．The liquid evaporates out of the container.
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