- Excuse me, are there any book stores around here?
- , but there are some on Center Street.
A:Yes, there are
B:No, there aren't
C:Yes, there is
D:No, there isn't
______ this money, Project Hope has ______ lots of poor children to go back to their schools.
某化学兴趣小组对一包干燥的红色粉末组成进行探究.请你参与并回答问题:
【教师提醒】它由Cu、Fe2O3两种固体中的一种或两种组成
物质
甲
乙
丙
丁
反应前质量/g
20
m
8
6
反应后质量/g
4
待测
28
2
如图,已知在平面直角坐标系xOy中,点A(4,0)是抛物线y=ax2+2x﹣c上的一点,将此抛物线向下平移6个单位后经过点B(0,2),平移后所得的新抛物线的顶点记为C,新抛物线的对称轴与线段AB的交点记为P.