作业帮 > 英语 > 作业

Many difficulties have ___ as a result of the change over to

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2019/10/19 11:15:16
Many difficulties have ___ as a result of the change over to a new type of fuel.
A.risen
B.raised
C.arisen
D.arrived
选C
raise是及物动词,此句若要用raise须这样改:Many difficulties have been raised as a result of ...
rise和arise都是不及物动词,但arise有出现/呈现的意思 而rise作动词时意思多与升起有关
找到一例句作参考:Difficulties arose out of the shortage of petroleum.困难起因于缺乏石油.