阅读下面一段文言文，完成1~4题。 杨允恭，汉州绵竹人。家世豪富，允恭少倜傥任侠。乾德中，王师平蜀，群盗窃发，允恭裁弱冠，率乡里子弟寨于清
After giving a talk at a high school, I was asked to pay a visit to a special student. An illness had kept the boy home, but he had expressed an interest in meeting me. I was told it would mean a
1. It is the driver rather than the students that are responsible for the accident in which the overloaded school bus crashed into the truck. 2. Along with the letter was his promise which he
若，且，则向量与的 夹角为（ ） A． B． C． D．
我国水资源的空间分布特点是( ) A、绝大部分地区水资源丰富 B、南丰北欠 C、冬春季节少，夏秋季节多
新华网平壤 2010年10月24日 电（记者白瑞雪 姚西蒙)，朝鲜政府24日晚在平壤人民文化宫举行盛大宴会，隆重纪念中国人民志愿军赴朝参战60周年。在这次
CO和CO2对人体健康有着重要的影响。关于一氧化碳和二氧化碳的叙述中，正确的是（ ）A．都是无色有毒的气体 B．都是
（04上海卷）常温时，向pH =2的硫酸中加入等体积的下列溶液后，滴入甲基橙试液，出现红色，该溶液可能是 （）A．pH =12 的Ba(OH)2
