声速测量中为什么信号源的频率变化

坦桑尼亚属于哪个洲﹖ 句首 介词+现在分词结构怎么翻译,比如After having.,On being. After being___,he was told he was suffering from cancerA.checked B.tested C.examined D.treated为什么,请详析, after being asked 能不能省略being变成after asked作为状语为什么?我记得老师说过:主动ing,被动ed （ ）（eat）good food helps you stay healthy the angry customer insisted (on being seen) by the manager为什么括号里不能填being seen呢?这里的insisted怎么样才能知道他是及物的呢?还是不及物动词? to avoid +宾语+being seen,being seen的句子成分是什么? Generally speaking,women are gentle and not as ____men; men like to fight.a. agressiveb. unconsciousc. informald. impressive Stand Up And Fight 歌词 保持好习惯是keep habits good 还是keep good habits笔记上说的是keep sth+adj.但是感觉这样好别扭.大神来看下答得好可以加悬赏。急急急 英语应该怎么学啊,为什么我的单词总是记不住呢 英语总是学不好有什么好的方法吗,单词怎么也记不住啊 为什么我的英语学不好 单词记不住 英语翻译把这首歌翻译成中文 写出大意即可我没说清楚啊 呵呵 这是一首韩语歌 很好听的 I think I am very healthy because I have a pretty good eating habit.I try to eat a lot of vegetable的翻译 国贸中swift的英文详细解释 谁能帮我解释几个国际贸易的英语名词价格条款FOB CNF CIF DAF 付款方式L/C T/T D/P 把每个单词写出来 然后在翻译成中文 歌曲a thousands miles小姐好白的插曲a thousands miles 挺好听的,怎么找不到什么地方有的下啊,帮忙找一下好么?谢谢啦~~ you'll hear it (ten miles away).就括号部分提问__ __ you hear it?只有两个空 You may walk ten miles without seeing a soul 是什么意思啊请帮忙啊! 有首歌里面you are ten party ten what party这个歌是叫什么啊?女生是主唱的 有男生配合.这个网站上的! 介绍华尔兹 英语 华尔兹的英文翻译.还有读法,读法发语音. 无尽的华尔滋的英文怎么说 who is the girl? who is the writer 他们解出那些数学题有困难 They＿ ＿ ＿ ＿the difficult math problem. 千里走单骑 RIDING ALONE FOR THOUSANDS OF MILES怎么样 He had traveled thousands of miles in the hope of earning some money,but 18-year-old Lin Kongming never knew danger was waiting for him.He and six other migrant workers from Fujian Province spent 36 hours in Iraq as international hostages.But luckily (5/5)t and see whether the alarm can be triggered by opening the door. ERROR(Triggered by NPC to rejoin party)是什么意思 be distracted