圆锥的体积等于圆柱体体积的 $\frac{1}{3}$.（判断对错）

随着《芈月传》的热播，对西安兵马俑到底是谁的陪葬品的争议尘嚣日上。传统观点认为，兵马俑是秦始皇的陪葬品，但另有些史学家认为兵马俑是芈月的陪葬品，并提出了相关证据。对兵马俑的争议（    ）

①说明历史事件由于年代久远，难有评定标准

②最终需要通过考古结果来证明孰对孰错

③表明对复杂事物的认识需要一个长期的过程

④折射出意识的直接现实性和主动创造性

若2a=3b=4c，且abc≠0，则$\frac{a+b}{c-2b}$的值是(    )

根据短文理解，选择正确答案填空。 

    Jim is a junior high school student. He gets up 16:30 every morning. His home is near his school. He 2home after breakfast. He goes to school on foot. This is good for his 3. He has four lessons in the morning. He has lunch at home. After lunch he goes to school again. In the afternoon, Jim has lessons . He likes English and PE lessons. He has PE lessons on Tuesday and Friday. He is good at4football and basketball. He is also good at the high jump. His PE teacher likes5 very much. He often plays football with his classmates after school.