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Theytriedseveraltimestotheproblem,andintheendtheysucceeded.[]A.giveupB.workoutC.lookthroughD.thinkof

题目详情
They tried several times to _______ the problem, and in the end they succeeded.
[     ]
A. give up
B. work out
C. look through
D. think of
▼优质解答
答案和解析
B