问题
选择题
Earth is a rocky planet _______ liquid water, which is necessary for life, can exist.
A．as
B．which
C．where
D．when
答案
答案：C
考查定语从句。先行词a rocky planet一颗岩石行星为下文的逻辑地点状语，故引导词用where。选C。
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Earth is a rocky planet _______ liquid water, which is necessary for life, can exist.
A．as
B．which
C．where
D．when
答案：C
考查定语从句。先行词a rocky planet一颗岩石行星为下文的逻辑地点状语，故引导词用where。选C。