下列关于物质分类合理的是( ) A.铅笔芯、橡胶是导体 B.蜡、水银是绝缘体 C.铁、玻璃是导体 D.塑料、干木棒是绝缘体
This necklace is beautiful but it doesn’t ____ the color of your hair. A. agree B. go with C. fit for D. suit
Alan always _______ tennis _______school. A.play; to B.plays; after C.play; at
北京城市副中心生态文明建设在2016年取得突出成果,通过大力推进能源结构调整, 热电替代供热面积为17960000平方米.将17960000用科学计数法表示应为 A
十几年来,引黄济青工程累计向青岛市四区供水超过10亿立方米,完全满足了青岛市的用水需求,确保了青岛市的稳定发展。据此回答以下3题。 6.引黄
The news came as no surprise to me, for I _______of it earlier.A. hearB. heardC. had heardD. have heard
Those who speed are a ______ to other drivers who observe the speed limit. A. menace B. sponsor C. blessing D. reward
小明家的电能表表盘如图所示,其中“220V”是指 ,该电能表的额定功率为 W。若他家上月末电能表的示数为0021.6kW·h,本月末示数如图所示