如图，三角形ABC中，D、E是BC上的点，BD：DE：EC=3:2:1

their teacher can _______a few languages.A.talk B.tell C.say D.speak 请问各位: speak,talk,tell,say 都有什么区别,谢谢了~ 试比较：say speak tell talk这几个词有什么区别 仿写句子：狂风终日在他身边呼啸,冰雹打着他的面庞；凶锰的大鹰在他耳边尖叫,用无情的的利爪撕裂他的肌 两辆汽车在相距70KM的两地同时出发相向而行,A车比B车的速度快两倍还快20KM/h,半小时后两车相遇两车的速度各是多少~【方程解 鲁迅的“一代不如一代”这句话是出自他的哪篇文章 求下面句子翻译及as的结构 求下面句子翻译及as的结构in fact,caring for someone who loves as deeply and appreciates my efforts as much as Jimmy does has enriched my life more than anything else. How to make friends with American? 英语翻译This use is bound to increase multifold as the advantages ofISD become better known.请翻译这句话,请翻译整个句子还有下面这句：Some items could conceivably fall into more than one category or may be borderline ISD.（共 班超素有大志和陈涉世家共有的写作特点 班超素有大志翻译,文章里的通假字也标出来,速求 班超素有大志中的通假字是什么? 英语翻译求翻译这个复杂的英语句子it seems likely that Teotihuacan's natural resources along with the city elite's ability to recognize their potential gave the city a competitive edge over its neighbors 写语文老师的赞扬词? 已知A、B两地相距300KM,甲、乙两车的速度分别是70KM……已知A、B两地相距300KM,甲、乙两车的速度分别是70KM/H和80KM/H.甲、乙两车从A、B、两地相向而行,多少时间相遇?设XH相遇,可列方程为（70+80 班超字仲生,扶风平陵人,徐令镖之少子也.为人有大志,不修细节·····这个出自哪里呀?全文怎么翻译啊? 班超为人有大志,不修细节, 翻译“为人有大志,不修细节.” 《班超有大志》译文 为什么我手机开了飞行模式从5楼扔出去还是坏了加微信lookxhj 哟 为什么我手机开了飞行模式从五楼扔出去还是坏了? take more money. the tickets are likely to be expensive.为什么是likely而不是possible,probable?谢谢 英语翻译How likely are you todo most of your future shopping at this store?类似于这种句子 写班超的成语有那些是成语 与班超历史人物有关的成语有 刘备和班超又分别是哪个成语? 哪个成语是写班超的?我们作业上的 与班超有关的成语多一点,越多越好! 为什么我把手机调成飞行模式,但是从楼上扔下去还是摔坏了? 最毒的蛇是不是眼镜王蛇? 眼镜王蛇毒还是海蛇毒快 眼镜王蛇会喷毒吗