题型:名词解释 -I went to see you yesterday evening. But you weren't in. Where were you then?-I ___________ a walk by the lake with my husband. [ ]A. was havingB. am havingC. have hadD. have 查看答案
题型:名词解释 A 组:一定质量理想气体,其状态沿图中的直线 ABC 进行变化,下列说法正确的是( )A.tA=tB=tCB.tA=tC>tBC.若t A=-3℃,则t B=-4℃D.若tA=-3℃,则tB=87℃ 查看答案