A:they brought; they also brought
B:did they bring; they also brought
C:brought they; did they bring
D:did they bring; did they also bring
试在图中画出钟表两指针像的位置.
在下面的长方形中有三个大小相等的圆.已知这个长方形的长为12cm,求图中任意一个圆的半径.
Can you see a vase and two heads? ____