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Without facts, we cannot form a worthwhile opinion, for we need to have factual knowledge ______ our thinking.(本题2.0分)
A、 which to base on
B、 which to e ased on
C、 to whih to be based on
D、 upon which to base
A、 which to base on
B、 which to e ased on
C、 to whih to be based on
D、 upon which to base
参考答案