问题
选择题
We don't have to ______ every word that we don't know when reading. [ ]
A. look up
B. refer to
C. look for
D. look into
答案
答案：A
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We don't have to ______ every word that we don't know when reading. [ ]
A. look up
B. refer to
C. look for
D. look into
答案：A