A:①②
B:①④
C:①③
D:③④
如图是由两个棱长都是2厘米的正方体拼成的一个长方体,这个长方体的表面积是____;体积是____.
看图片,选句子
A. Talk quietly.
B. Keep to the right.
C. What is Zhang Peng doing?
D. Keep your desk clean.
E. They are eating lunch.
____
6____7=13
选出没有错别字的一组词语( )。