Bank was the first crops from one continent to another , helping to develop local economies with these new imports.
A. move; on a large scale
B. moving; on large scale
C. to move; on a large scale
D. moved; on a large scale
网友回答
A. move; on a large scale
B. moving; on large scale
(答案→)C. to move; on a large scale
D. moved; on a large scale
解析：序数词以及有序数词修饰的名词或代词加动词不定式作后置定语；on a large scale 固定短语，“大规模的”。