搜题请搜索小程序“爱下问搜题”
问题
填空题
a
3
•a
2
=______．
答案
a
3
•a
2
=a
3+2
=a
5
．
选择题
Lingling and Jane are both good at dancing. Who dances
?
A. nice
B. well
C. better
D. the best
查看答案
问答题 简答题
电压型逆变器有何特点？
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