【单选题】
In Paragraph 4, the author implies that imagination is most important to scientists when they ______.
A.evaluate previous work on a problem
B.formulate possible solutions to a problem
C.gather known facts
D.close an investigation
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根据网考网移动考试中心的统计,该试题:
10%的考友选择了A选项
69%的考友选择了B选项
2%的考友选择了C选项
19%的考友选择了D选项