_________by the advances in technology,many farmers have set up wind farms on their mind.A.Being encouragedB.EncouragingC.EncouragedD.Having encouraged还有我自一直搞不清楚像A\C这种选项的区别...求教...

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_________by the advances in technology,many farmers have set up wind farms on their mind.A.Being encouragedB.EncouragingC.EncouragedD.Having encouraged还有我自一直搞不清楚像A\C这种选项的区别...求教...
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_________by the advances in technology,many farmers have set up wind farms on their mind.A.Being encouragedB.EncouragingC.EncouragedD.Having encouraged还有我自一直搞不清楚像A\C这种选项的区别...求教...
_________by the advances in technology,many farmers have set up wind farms on their mind.
A.Being encouraged
B.Encouraging
C.Encouraged
D.Having encouraged
还有我自一直搞不清楚
像A\C这种选项的区别...求教...

_________by the advances in technology,many farmers have set up wind farms on their mind.A.Being encouragedB.EncouragingC.EncouragedD.Having encouraged还有我自一直搞不清楚像A\C这种选项的区别...求教...
这个属于分词作状语,看它和句子主语的关系,主动用v-ing,被动用v-ed,many farmers应该是被鼓励的.
A.Being encouraged正在被鼓励
B.Encouraging
C.Encouraged
D.Having encouraged
BD表示主动.D是B的完成式,表示动作先于谓语动词have set up之前发生.
AC表示被动,A是正在被鼓励,时间不可以,所以选C

C 独立主格