题干
— The owner of the small shop fought to stop the big corporation from knocking it down.
— Yes, and he finally made it. It was indeed __________.
A：a catch-22 situation
B：a Pandora's box
C：a David and Goliath battle
D：a Jekyll and Hyde existence
答案(点此获取答案解析）
C
，纵坐标不变；（3）向左平移
个单位；
个单位；（6）向右平移
的图象，可以实施的方案是