0.87×8.907=____
0.43×7.09=____
看图片,选句子。
A. There are lots of grapes.
B. It looks like a tiger.
C. I fell off my bike.
D. We went to Turpan last Saturday.
E. Labour day.
F. Look at my pictures.
____
科学探究的过程一般的程序有七个步骤,下列关于七个步骤的顺序的说法中,正确的是( )
仔细阅读课文《快乐的暑假》第一节,说说这节写了什么?