题型:问答题 简答题 下列说法错误的是( )选项甲乙A常见指示剂石蕊、酚酞、肥皂水B常见合金生铁、不锈钢、青铜C常见干燥剂浓硫酸、生石灰、火碱D常见营养物质蛋白质、维生素、油脂A.AB.BC.CD.D 查看答案
题型:问答题 简答题 Just putting away the dishes,_________A.the telephone rangB.someone knocked at the doorC.Mary heard the phone rangD.the door was opened 查看答案