①减轻企业经济负担，增强市场活力       ②加大财政支持，促进转移支付

③增加职工现金收入，提升消费能力       ④完善社会保障，实现分配公平

俄总理发起禁烟运动，力争2016年全面禁锢。回顾历史，我国轰轰烈烈“禁烟运动”的领导者是（    ）

下列代数式：2xy²，-$\frac{1}{2}$ab，$\frac{1}{4}$，2b=1，m，$\frac{a+b}{4}$，$\frac{a}{\pi }$中，单项式有（　　）

阅读短文, 下列问题

Miss Han: You bring(带来) many things to school, Kevin. Can you tell (告诉) me what are on your desk?

Kevin: Yes, I can. There is an eraser,a ruler, three pencils and a pencil box on my desk.

Miss Han: What is in your drawer(抽屉)?

Kevin: In my drawer, there are two books and a notebook.

Miss Han: What is that on the floor?

Kevin: It is my school bag.

Miss Han: Do you bring your lunch box(饭盒) to school?

Kevin: Yes, I do.

Miss Han: Where do you put it?

Kevin: I put it under my desk.