问题
选择题
Fur coats are good means to ______ people from frost bites in cold winter. [ ]
A. stop
B. prevent
C. protect
D. keep
答案
答案：C
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Fur coats are good means to ______ people from frost bites in cold winter. [ ]
A. stop
B. prevent
C. protect
D. keep
答案：C
，则该直线必定( )。