【答案】
分析:根據(jù)同底數(shù)冪的除法、冪的乘方、平方根、立方根的定義解答.
解答:解:A、a
6÷a
2=a
6-2=a
4≠a
3,故本選項(xiàng)錯(cuò)誤;
B、(a
3)
2=a
3×2=a
6≠a
5,故本選項(xiàng)錯(cuò)誤;
C、
![](http://thumb.zyjl.cn/pic6/res/czsx/web/STSource/20131101192711090626985/SYS201311011927110906269002_DA/0.png)
=5,表示25的算術(shù)平方根式5,
![](http://thumb.zyjl.cn/pic6/res/czsx/web/STSource/20131101192711090626985/SYS201311011927110906269002_DA/1.png)
≠±5,故本選項(xiàng)錯(cuò)誤;
D、
![](http://thumb.zyjl.cn/pic6/res/czsx/web/STSource/20131101192711090626985/SYS201311011927110906269002_DA/2.png)
,故本選項(xiàng)正確.
故選D.
點(diǎn)評(píng):本題考查了立方根、算術(shù)平方根、冪的乘方與積的乘方、同底數(shù)冪的除法,是一道基礎(chǔ)題.