北美洲的地形特征是东西高、中部低。北美洲地形明显地分为三个南北纵列带,即西部是高大的山系,中部为广阔的平原,东部是低缓的高地。北美洲平均海拔较高,地势起伏较大。
I don\'t have access to a multi-socketed computer, so I am unsure if the follo开发者_开发问答wing will get the grand total of processors and logical processors.I assume ManagementObjectSearcher will r