下列运算正确的是( )
A:2a2+3a3=5a5
B:a6÷a3=a2
C:(﹣a3)2=a6
D:(x+y)2=x2+y2
读某城市功能分区示意图,回答下列各题。
While studying,fix your mind on what is really important,or you will________remembering nothing.
My father has _______ orange car.