In January Cathy was walking through a mall, texting on her phone. She wasn't watching where she was going, so she fell into a fountain! Luckily only her pride was hurt—she quickly climbed out and
函数y=x3-2ax+a在(0,1)内有极小值,则实数a的取值范围是( ) A.(0,3) B.(-∞,3)C.(0,+∞) D.(
秦始皇创立的皇帝制度，与下列哪些制度有继承关系（ ） ① 禅让制 ② 王位世袭制 ③ 分封制 ④ 宗法制 A．② B．②
进一步探究：在老师的指导下，小明取一牢固的密闭性好又能加热的钢制气罐， 通过盖上的特殊孔，在气罐内安装了温度、气压传感器。对气罐缓慢加
读图回答下列问题 （1）图中右下角区域是重要的优质棉花生产基地，简要分析优势的气候条件。 （2）图中河流②南北跨纬度约15°，河流的汛期主要
“杏林”是中医学界的代称。“杏林”体现的是一种价值标准，包含着“亲、善、诚、信、中、和”的丰富内涵，这正是杏林文化延续至今的生命力所
对联是中华文化所独有的一种凝缩了文学艺术品类，对联除要求上下联字数相等外，还要求句法相似，即句式相当，相对位置的词类相同结构一致。试
The right to pursue happiness is issued to us all with our birth, but no one seems quite sure what it is. A holy man in India may think that happiness is in himself. It is in needing n
