问题
选择题
He made a quick _____ from an unfriendly to a friendly manner when he saw that we could help him. [ ]
A. decision
B. preparation
C. switch
D. difference
答案
答案：C
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He made a quick _____ from an unfriendly to a friendly manner when he saw that we could help him. [ ]
A. decision
B. preparation
C. switch
D. difference
答案：C