this is one of the experiments___at the moment in our librar

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this is one of the experiments___at the moment in our library.
a.being carried b.carried c.carrying d.to carry

选B
首先,carry和experiments是动宾关系,所以要用被动语态,排除C和D
其次,A选项being carried 用的是现在分词短语作定语,一般表示状态,或者是正在进行的动作；而B是过去分词短语作后置定语,与A的区别是,一般表示已经完成的动作.
因此这里选B是最合适的.

this is one of the experiments___at the moment in our librar the moment of our 英语翻译One of the best things we can do in our lives is this Be This is the only book ___was written by Lu Xun in the librar A from one end.At this moment the distance of AB is 1/7 of t ()is not difficult to find books about the USA in our librar 英语翻译Living in the moment——Jason MrazIf this life is one act she is one of the few persons___French in our school. Kate is one of the best____(student)in our class this is the one of.. 适当形式填空Jay Zhoue is one of _ singers in Asia at the moment.(p this is one of the explanations ____people hang stockings in