问题 选择题
0.30的计数单位是0.3的计数单位的(  )
A.
1
10
B.1倍C.10倍
答案

0.30的计数单位是0.01,0.3的计数单位是0.1,0.01是0.1的

1
10

故选:A

单项选择题
单项选择题