如图所示，一辆小汽车质量为1.2t，发动机的功率为60kW，停在水平地面上时，四轮与地面的总接触面积为1000cm2．当它在水平公路上以20m/s的速度匀速行驶1440m时，求：
3的正整数次幂：31=3，32=9，33=27，34=81，35=243，36=729，37=2187，38=6561…观察归纳，可得32007的个位数字是（ ）
读下图，此图显示我国古代经济重心的南移经历了一个漫长的过程，与图中第③处对应的时期是（ ）
① ② ③
地图上指向标的箭头一般指向（ ）
⑴What do you want to buy? ____ A. I see some buses and cars.
⑵What are the children doing?____ B. I want to buy a panda.
⑶What do you see on the street?____ C. Yes, she does.
⑷What colour is this table?____ D. They are reading books.
⑸Does she take a picture?____ E. It is brown.
