题干
Though suffering a serious injury, Rafael Nadal refused to _______ the game and went on.
A：give out
B：give i
C：give u
D：give off
答案(点此获取答案解析）
C
A：give out
B：give i
C：give u
D：give off
的图像沿x轴向右平移2个单位，所得的图像为C,C关于x轴对称的图像为
的图像，则
