问题
选择题
It is such a difficult problem _______ no one can work out.
A．as
B．that
C．so
D．thus
答案
A。
such…as…“像这样的”，as 引导定语从句。
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It is such a difficult problem _______ no one can work out.
A．as
B．that
C．so
D．thus
A。
such…as…“像这样的”，as 引导定语从句。