下列交通标志中,是轴对称图形但不是中心对称图形的是( )
A:
B:
C:
D:
- Do you think the rain will stop tomorrow?
-__________. It has rained for ten days. It's too wet everywhere.
一颗图钉尖的面积是5×10-8m2,图钉帽的面积是0.5×10-4m2,手指对图钉的压力为20N,求:
The boy was not lift the box of apples.
下图中的电路图和实物图相对应的是( )