单选题It was from the earliest time _____ men began to study the natural phenomena and heavenly bodies.AwhenBwhereCthatDhow
单选题
It was from the earliest time _____ men began to study the natural phenomena and heavenly bodies.
A
when
B
where
C
that
D
how
参考解析
解析：
从空格前内容可推知强调的是时间状语。故不可用when代替that，正确选项为C。
从空格前内容可推知强调的是时间状语。故不可用when代替that，正确选项为C。
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