【单选题】---It’s 12 April today. Have they found any useful information about the plane's black box? ---Flight MH370? Yes, but it’s difficult to decide where the black box really is.
【简答题】Many animals can (judge) directions by smelling.
【简答题】某房屋基础平面图、断面图如下图所示,求 该 房屋人工土方的工程量。 (土壤类别为一、二类土; C10素砼垫层;C20钢筋砼基础 )
【简答题】Many animals can maintain constant conditions in their interval
environment.A. relate B. relative C. relativity D. relatively