下列说法正确的是（ ）

①表明国家深入落实支持非公有制经济发展的政策

②有利于激发非公有制经济的活力和创造力

③表明在我国已经彻底扫清了非公有制经济发展的障碍

④是基于非公有制经济是社会主义经济的重要组成部分

有4包真空小包装火腿，每包以标准克数（450克）为基准，超过的克数记作正数，不足的克数记作负数，以下数据是记录结果，其中表示实际克数最接近标准克数的是  (     )

⑴Where are your parents?____                           A. Yes, I'd like some fruit.

⑵Is your brother sleeping in the room?____      B. They are at home. 

⑶Can I help you?____                                         C. She's playing the piano.

⑷Would you like some fruit?____                       D. No, I'm not.

⑸Can you see the red light?____                        E. She's singing.

⑹What is Helen doing?____                                F. Yes, please.

⑺Are you busy?____                                           G. No, I can't.

⑻What is she doing in the music room?____     H. No, he isn't.