A:mustn’t
B:can’t
C:wouldn’t
D:couldn’t
建设“海绵城市”,就是综合开发和利用城市各种条件,使城市像海绵一样,对雨水具有吸收和释放功能,能够弹性地适应环境变化和应对自然灾害。海绵城市建设体现了( )
根据短文理解,选择正确答案。
Attention, Students! Beach Party Comes!
We will hold an outdoor party in Fulong on July 10.
Activities
1). Bike riding or hiking from the Student Centre to the beach
2). A cookout (野炊) on the beach
3). Swimming and sailing competitions
You should bring
sun cream, sunglasses, hats, swimsuits, hiking shoes, and personal items
Deadline
(最后期限)
for signing up
Friday, June 28
Fee
$300 per person(每人)
Meet at the Student Centre at 9:30 am, July 10.
(1)解方程:12x(x﹣1)﹣(x﹣1)=0.
(2)已知抛物线y=﹣2x2+8x﹣6,请用配方法把它化成y=a(x﹣h)2+k的形式,并指出此抛物线的顶点坐标和对称轴.
读“中国沿32°N纬线地形剖面图”,完成下列各题
车站
到达时间
发车时间
里程
上海
—
09:00
0
南京
10:00
10:15
295
济南
12:15
12:30
912
北京
13:30
1350