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题库 / Prep2007E2-SC-27
In an effort to increase profits, the company moved itself from emphasizing its chemicals business to expand into high-growth pharmaceuticals and futuristic biotechnologies.
itself from emphasizing its chemicals business to expand
itself from emphasizing its chemicals business then to expanding
from an emphasis on its chemicals business and to expanding
from an emphasis on its chemicals business and to expand
from emphasizing its chemicals business to expanding
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B选项 itself 属于多余，直接move from doing sth. to doing sth. 更加简洁。
而then和from ... to ...表达的意思重复，都表达时间先后次序
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