单项选择题

[A] earth [C] space
[B] atmosphere [D] environment

A．earth
B．space
C．atmosphere [D] environment
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单项选择题
[A] across [C] from[B] to [D] through
A．across
B．to
C．from
D．through
单项选择题
[A] from [C] as[B] than [D] away
A．from
B．than
C．as
D．away
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