题型:名词解释 Up to now, the weather______ pleasant for the journey. I hope our good luck will continue.A.isB.wasC.has been D.will be 查看答案
题型:名词解释 下列物质的密度由小到大的顺序是( )(1)水蒸气 (2)0℃的水 (3)冰 (4)4℃的水.A.(4)(2)(3)(1)B.(2)(3)(1)(4)C.(1)(3)(2)(4)D.(1)(2)(3)(4)、 查看答案