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what is the biggest difference between America and China的答语 阀门型号中H42W-10C中的W是阀座密封面材料由阀体直接加工形成,这句话怎么理解? 那帮我查有关The Difference Between Chinese and American Eating Etiquettes的论文谢谢大家 要英文的 请问大侠们：氢氟酸用什么样的调节阀?能把阀体、阀芯、阀座的材质和结构形式告诉我吗? 三氯化硅和四氯化硅罐区管路上阀门一般都用什么型号的,阀体材料和阀座材料该选哪一种呢阀芯什么材质?填料什么材质? 图纸上球阀的材质是A216 Gr.WCB/304SS/PETF是什么意思?阀体,球体 ,阀杆,阀座 双向开关阀是什么阀?是不是能同时控制两个液压缸?能不能控制两个液压缸同步? 英语作文我的中国梦 英语作文 中国梦表格两列 第一行 不同人群 梦想 第二行 城市居民 交通…环境… 第三行 大学生 就业…食品… 第四行农民 教育…医疗…第五行 你的梦想 提出至少两个梦想 The differences between chinese and American gift-givingPlease use English.Just talk about the differences. Culturally speaking,what are the differences between America and China?Please list three differences which impress you the most.Thanks! 主蒸汽合金钢阀门（Z960Y-100V）阀门阀盖与阀座的密封采用什么密封的 速求英语作文我的中国梦--- 请问谁能帮我查有关The Difference Between Chinese and American food culture的论文,（急用!） what do you think is the most impressive cultural difference between China and the West?请尽快发表～ 蝶阀的介质流向有规定的方向性吗? 塑料蝶阀的材料不是塑料的吧! The purse___,they went to the police.A.not yet foundB.hasn't been foundC.being not foundD.not having yet found 寻找关于the similar and the differences between Chinese family and American family的文章differences between Chinese children and American children （police,it,station,the,was,at）连词成句 连词成句：station,works,the,police,she,at Yesterday Mike went to the police station to report a _ (thief)把这句话翻译一下 I police bus the took station a on 连词成句 如何区分to不定式做宾补与做定语:he went to police station , admitting that he was the one to blam...如何区分to不定式做宾补与做定语:he went to police station , admitting that he was the one to blame为什么不是to be blame Stephen has a big house ____________(有)more than ten rooms. 1.There are more rooms here t_____ in our old apartment.2.I like some p_____ of the apartment. 改错题 on the monday,i played basketboll.then i pick it up andwent to the police急, ."I went to try to pick it up and it bit me again ."为什么要加 went I went to _____ bed to pick up some papers on it.A：the B：a C： / D：an I went to _____ bed to pick up some papers on it.A：the B：a C：/ D：an 如果学英语,大家觉得中国英语教育好,还是英国美国等英文教育好.(听过李阳的演讲.他说中国教育英语有点生硬.不像英美英语教育一样活跃.) 美国人或美语用英文怎么拼?还有加拿大人,泰国人,新西兰人,澳大利亚人用英文怎么拼