8.23×0.06的积是[ ]
A.三位小数
B.四位小数
C.六位小数
答案:B
Find out the mistakes and correct them. 找出错误并改正。
( ) 1. I often eat porridges for breakfast.
A B C
( ) 2. Li Ming washes she hands every day.
( ) 3. Jenny eats lunch for thirty minute.
( ) 4. Look at the skins on my arms.
( ) 5. My favourite fruit are melon.
地球的辐射带