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过的省区有： 新疆、______、______、______、______、______、______、______、______、上海。 (2)西气
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析式是_______
如图，法国国旗上的三种颜色象征着“自由、平等、博爱”。近代法国宣称人们生来自由，权利平等的是（ ）A．《权利法案》 B.《独立宣言》
A year is divided into months．August is the month of the year． A．twelve；eight B．twelve；eighth C．twelfth；eight D．twelfth；eighth
—Do you mind if I stay here a little longer? — . A. No, you can’t B. Yes, you may C. Certainly not D. Yes, not at all
如图2-5-6,△ABC中,AM为中线,AD为∠BAC平分线,△ADM外接圆交AB、AC于L、N,求证:BL=CN.图2-5-6
