A:y=x2+2
B:y=(x﹣2)2+2
C:y=(x﹣2)2﹣2
D:y=(x+2)2﹣2
示例:志:是指引轮船航行的灯塔,有了灯塔的指引,才能到达理想的彼岸。
下列物质中含有氧分子的是
It's____(重要的)to have a good study habit(习惯).
In Sweden, people don't need to _______ too much money on presents, instead, making a meal is enough.