抛物线y=x2+2x+m﹣1与x轴有两个不同的交点，则m的取值范围是（ ） A．m＜2 B．m＞2 C．0＜m≤2 D．m＜﹣2
穆罕默德·阿里改革的弱点是（ ） A．引进了外国的先进技术和经验 B．重点发展军事工业 C．未能进行根本性的全面结构变革
我国把对外开放作为一项基本国策，开创了世界进入中国、中国走向世界的新局面。
Even before my father left us, my mother had to go back to work to support our family. Once I came out of the kitchen, complaining, “Mom, I can’t peel potatoes. I have only one hand.” Mom neve
如图所示，圆锥的母线长是3，底面半径是1，A是底面圆周上一点，从点A出发绕侧面一周，再回到点A的最短的路线长是（ ）A．6B．C．3D．3
材料一 教育公平是一个人发展起点的公平。它不仅影响着一个人的生存和发展，还影响着一个民族和国家的发展与未来。党和国家高度关注教育
完形填空。 It was a Sunday afternoon. It was very__1__and nobody wanted to stay at home. Mike decided to go swimming in the river. His brother, Jim, wanted to go with him. __2__him with you, Mike
