以下物品中,()是不绝缘的。A.塑料拖鞋 B.棉线手套 C.钉掌皮鞋 D.安全帽 发布时间:2017-07-30 11:08 │ 来源:www.tikuol.com 题型:单项选择题 问题: 以下物品中,()是不绝缘的。A.塑料拖鞋B.棉线手套C.钉掌皮鞋D.安全帽
题型:单项选择题 It is no longer________it was 20 years ago,________it was so poorly equipped.[ ]A.what;when B.that;whichC.what;which D.which;that 查看答案