最佳答案:The climate in the southern hemisphere is the exact opposite of that in northern
最佳答案:This is only a small gift that is not worth mentioning,I sincerely wish you,who
最佳答案:1、90°E,0° (0°经线为晨线,应为春分或秋分,直射赤道;晨线为6点,直射点为12点求出经度应为90°E)2、9月23日14时(公转速度渐快——近快远慢,