The fifth-generation computers，with artificial intelligence，( )and perfected now. A.developed B.have developed C.are being developed D.will have been developed
The fifth-generation computers，with artificial intelligence，( )and perfected now.
A.developed
B.have developed
C.are being developed
D.will have been developed
B.have developed
C.are being developed
D.will have been developed
参考解析
解析：考查进行时的被动语态。空格处动词应用被动语态，首先排除A、B两项。C、D两项的区别在于时态不同，根据句尾的now可知，应选择进行时，因此C项符合要求。故本题选C。句意：人工智能的第五代计算机目前正在被开发和完善中。
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