单项选择题

It is indicated in the passage that（）

A．Earth is cool at first
B．Earth is hot at the beginning
C．there are oceans at the beginning
D．there is life in the ocean in late February

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单项选择题
In the compressed history of Earth the Declaration of Independence is signed（）

A．a long time before the New Year
B．immediately after the New Year's Day
C．just one second before the New Year
D．right on the New Year's Day
单项选择题
According to the passage, primitive ocean life begins to evolve into complex organisms （）

A．in the middle of December
B．when Earth is cratered
C．at the beginning of November
D．when the land is still a lifeless waste
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