控制电缆按工作类别可分为()。 A.普通控制电缆 B.低阻燃类电缆 C.耐火类电缆 发布时间:2017-06-10 14:20 │ 来源:www.tikuol.com 题型:多项选择题 问题: 控制电缆按工作类别可分为()。A.普通控制电缆B.低阻燃类电缆C.耐火类电缆D.耐温类电缆
题型:多项选择题 On his way home yesterday , Tom was hit on the head_____he had time to realize what was happening .A.sinceB.beforeC.whenD.until 查看答案