【单选题】
He worked ______ at his task for weeks before he felt satisfied that the results would justify his long effort.
A.occasionally
B.regularly
C.patiently
D.assiduously
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根据网考网移动考试中心的统计,该试题:
4%的考友选择了A选项
23%的考友选择了B选项
5%的考友选择了C选项
68%的考友选择了D选项