①坚持走中国特色社会主义道路
②坚持改革开放
③落实科学发展观
④坚持人民代表大会制度
A:①②③
B:②④
C:①②③④
D:②③④
China is seeing ______ growing trend in the number of people owning pets and ______ recent survey finds that one in 13 Chinese now keep animals.
已知x﹣y=3,则代数式(x+1)2﹣2x+y(y﹣2x)的值是____