第7题: [单项选择]With all its advantages, the artificial intelligence is by no means without its ______. A. boundaries B. restraints C. confinements D. limitations 参考答案:D 答案解析:名词辨析题。limitation指时、空、程度、量等的“限定”,超出了这种限度就有不快的后果,“局限”;boundary是限制线,边界,分界线;restraint“抑制,克制”;confinement