问题
选择题
There’re more than 100 elements found in nature, ______ are metals.
A．most of which
B．most of them
C．most of that
D．most which
答案
答案：A
考查介词+关系词引导的定语从句。先行词为100 elements关系词which，自然界中已经发现的100种元素中大部分是金属元素。
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