问题
选择题
Clearly, in a system _________ every decision is made on the basis of tradition alone, it may be difficult to achieve progress.
A．that
B．when
C．where
D．which
答案
答案：C
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Clearly, in a system _________ every decision is made on the basis of tradition alone, it may be difficult to achieve progress.
A．that
B．when
C．where
D．which
答案：C