安徽位于华东腹地,是我国东部襟江近海的内陆省份,跨长江、淮河中下游,东连江苏、浙江,西接湖北、河南,南邻江西,北靠()
参考答案:山东
下面的哪些程序段可能导致错误 ( ) Ⅰ: String s = "Gone with the wind";String t = "good ";String k = s + t; Ⅱ: String s = "Gone with the wind";String t;t = s[3] + "one"; Ⅲ: String s = "Gone with the wind";String standard = s.toUpperCase(); Ⅳ: String s = "home directory";String t = s-"directory":
A.Ⅱ、Ⅲ
B.Ⅱ、Ⅳ
C.Ⅰ、Ⅳ
D.Ⅲ、Ⅳ
简述海洋功能区划的概念。