3：4=______÷20=______%=12()=______折．_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题填空题

3：4=______÷20=______%=

12

( )

=______折．

答案

3：4=15÷20=75%=

15

20

=七五折．

故答案为：15，75，七五．

选择题

These machines can help recycle the waste which would ______be thrown away.

A．otherwise

B．therefore

C．however

D．though

问答题简答题

什么是变电所主接线？