题目内容
The teacher gave the students such a difficult maths problem _________ nobody worked it out．
[ ]
A．
as
B．
which
C．
that
D．
so
答案：C
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发散思维新课堂系列答案题目内容
The teacher gave the students such a difficult maths problem _________ nobody worked it out．
as
which
that
so
发散思维新课堂系列答案