下列正确的实验操作是 A．过

下列正确的实验操作是

A．过滤 B．点燃酒精灯 C．闻气味 D．倾倒液体

答案

相关题目

To get an “A” in the exam is a good ________ and you’ll surely win a se

To get an “A” in the exam is a good ________ and you’ll surely win a second. A．mark B．score C. result D．start

调节天平时，首先将天平放在水平桌面上，再把游码移至标

调节天平时，首先将天平放在水平桌面上，再把游码移至标尺的零刻度线处，若指针静止时指在分度盘的右侧，这时应将平衡螺母向___________调节。

The company will announce a new rule next month and those who smoke in the of

The company will announce a new rule next month and those who smoke in the office __________ $ 100 by then. A. fine B. will fine C. is being fined

----Just a moment. I haven’t finished packing my suitcase. ---- ______ . Its

----Just a moment. I haven’t finished packing my suitcase. ---- ______ . Its high time we left for the airport. A. Go ahead B. Take it easy C. Hurry up �

如右图所示，小球B刚好放在真空容器A内，将它们以初速度竖

如右图所示，小球B刚好放在真空容器A内，将它们以初速度竖直向上抛出，下列说法中正确的是 A.若不计空气阻力，上升过程中，B对A的压力向上 B.若考

读我国西气东输主干道走向示意图： (1)西气东输工程主要经

读我国西气东输主干道走向示意图： (1)西气东输工程主要经过的省区有：新疆、______、______、______、______、______、______、______、______、上海。 (2)西气

He has made another wonderful discovery,___ of great importance to science. �

He has made another wonderful discovery,___ of great importance to science. A. who I think it B.which I think it is C. that I think is D. which I think is

抛物线y＝ax2＋bx＋c如图所示，则它关于y轴对称的抛物线的解

抛物线y＝ax2＋bx＋c如图所示，则它关于y轴对称的抛物线的解析式是_______

下列正确的实验操作是 A．过

答案

相关题目

最新题目