在比例尺为1:500 000地图上,量得A B的直线距离为6厘米,两地的实际距离是多少? ( ) A 500千米 B 30千米 C 300千米 D 500000千米 答案: B
Five years ago I ____ a child. Today I ____ a middle school student. In ten years I _____ an engineer. A am, was, will be B was, am, will be C was, will be, am D am, am, was