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抹香鲸的大便真的就是历史记载的龙涎香吗?曾看报道一个美国人机缘巧合掉进一团抹香鲸的大便中从而至富!因为他得到了难得一见的大团龙涎香!那么抹香鲸的大便真的就是龙涎香吗?抹香鲸 为什么抹香鲸能产生龙涎香? 例题1：He is often at church on Sunday 例题2：The Sawyers often at church on Sunday.为什么第一个例子中有be动词is,第二个例子中the sawyers后面没有be动词? 是 in sunday 还是 at sunday 还是 on sunday? 我心中的那颗星 是in a town of england还是a town in england或者两个都可以的话,哪个更好或哪个更常见 我心中的那颗星作文 不要复制粘贴的 They have a son and a (1). 果蝇一生可以交配几次?有的生物题让果蝇回交是错的吧? 在一个随机交配的果蝇群体中,4%的果蝇为黑身（隐形基因b控制）,96%的果蝇为灰身（显性基因B决定）在这个种群中,BB和Bb个体依次是为什么是64%和32%要原因 -When were you at church?回答可以用 -I was on January 可以把其中的at church省略 煤气灶点火装置怎么换了后起火啊?原来的开关拧不动了,买了套新的,换上打着后灶下面起火了.有懂的给我说说啊? 哪种塑料有最大的市场份额Which of the following plastics has the highest market shareWhich of the following plastics has the highest market share?phenolicspolyethylenepolypropylenepolystyrenepolyvinylchloride Which of the following is fired at the highest temperatures?a.chinab.earthenwarec.porcelaind.stoneware Which one of the following materials has the highest modulus of elasticity?a.aluminumb.diamondc.steeld.titaniume.tungsten 韩愈《进学解》业精于勤,荒于喜,,.补充空白处. 英语翻译爬罗剔抉,刮垢磨光.盖有幸而获选,孰云多而不扬.诸生业患不能精,无患有司之不明；行患不能成,无患有司之不公.” 句子翻译 英语翻译英译汉：please i found it too difficult to translate the web to English,so i will appreciate if you can contact me in my official email markroland.royland128@gmail.com or kindly send yours to me here. always brings me some flowers when he visite me请问这句是从句吗?visite在这为社么不加S 后两字重叠的成语ABCC式 后面两字重叠 ,如文质彬彬 得意洋洋 威风凛凛 生机勃勃还有知道别的词语的吗,就这四个吗? 得意洋洋 类似的成语多来几个 形容得意洋洋的骄傲神气的成语 有哪些成语是倒用的?如：得意洋洋-洋洋得意快,急用! yes,we had an English party last year.的上一句是什么（说明：根据上下文填句子） She had a French leave at the party last Sunday.用英语怎么解释 英语翻译 I think it is going to be colder later ___ They live __a tall building in the city __Toronto还有一大堆呢,写不完了 "企业成立前发生的费用"的英文,pre开头的一个词,不是开办费. 谁能告诉我电视传播符号在广州亚运会开幕式中的体现和作用,从声音符号 视觉符号 声音和视觉的组合符号分 can you draw a nice picture() two minutes?A.in B.at C.on D.after（说明为什么） 标志符号传递信息有什么优点? Can you draw a nice picure_____two minutes?