秦国能统一六国的最大优势是()。
A.礼乐文明程度高
B.人数最多
C.经济最发达
D.力量最强
参考答案:D
连词组句。
1. have, I, a, don't, bat, baseball
_____________________________.
2. your, it, backpack, is
_____________________________?
3. likes, for, Tom, bread, breakfast
4. what, her, number, telephone, is
5. books, the, bookcase, in, the, are
一艘轮船从甲港顺水航行到已港,立即逆水返航到甲港,共用8小时,已知轮船顺水速度比逆水速度每小时快20千米,又知前4小时比后4小时多航行60千米,问两地路程?