______ that they may eventually reduce the amount of labor needed on construction sites by 90 percent. ASuch construction robots are clever BSo clever the construction robots are CSo clever are the construction robots DSuch clever construction robots are

______ that they may eventually reduce the amount of labor needed on construction sites by 90 percent.

ASuch construction robots are clever
BSo clever the construction robots are
CSo clever are the construction robots
DSuch clever construction robots are

出自：新疆广播电视大学-大学英语（一）

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