问题
选择题
He helped her and she _____ him with a smile. [ ]
A. gave
B. brought
C. rewarded
D. said
答案
答案：C
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He helped her and she _____ him with a smile. [ ]
A. gave
B. brought
C. rewarded
D. said
答案：C
请围绕魏晋南北朝的科学家的成就，制作一个表格。
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