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聚四氟乙烯能否耐高压氧气呢? 说房子或院落几进的“进”是什么意思?老听别人说房子或院子几进几进的,和现在的说的“间”有什么区别? 古代建筑几进几重院落是什么意思?比如衡山南岳它是“九进四重”风格? 什么是五进院落?就是古代院落,三进五进`` 院落重门 什么意思 谁知道OP-10的英文名全称? 电鳗的的物理结构.谁知道关于电鳗的物理知识, 电鳗和摩擦发电原理是什么? a half day room charge 半天房费是这样说吗 Do I have to pay for an extra charge for the special exhibition?中间一定要那个an? need an extra two weeks.这里为什么要在two weeks前加冠词an?不加可以吗? 英语翻译a non-conventional approach is proposed for organizing the cognitive activity of students– future teachers,in acquiring methods and technique of the school physics experiment. 英语翻译The vacation in space will include,firstly,an eight-week training course on an island,then a rocket transport between the earth and your hotel in space,and finally a three-day stay and a return rocket trip.So,what will the cost be?For a v 液化天然气船的英文全称是什么 12—all older children or adults are charged 35 pounds per night and person for extra beds.4123 想12—all older children or adults are charged 35 pounds per night and person for extra beds.4123 想问：1—这里的are charged是被动吧?2—上 47303:all older children or adults are charged 35 pounds per night and person for extra beds.求本句翻译及语言点1—all older children or adults are charged 35 pounds per night and person for extra beds.翻译：所有大一点的孩子或者 客人说聚四氟乙烯样品溶解于氢氟酸,请问是什么原因?客人反馈说我们的全新料样品（晨光）模压板,溶解于氢氟酸中,我要求他出示实验照片结果及纸质证明,他说这是他们自己做的实验,没有 11—all children are welcome,and we have a children and extra bed policy.4123 想问：1—extra bed11—all children are welcome,and we have a children and extra bed policy.4123想问：1—extra bed policy：这个 policy应该是保险的意思 games are as important for adults as they are for children. 聚乙烯可以用来装高氯酸吗?氢氟酸呢?聚四氟乙烯的塑料容器哪有卖? 英语翻译英文越短越好,但要正确.容易记一点, 电压力锅内胆什么质量的好 病句 举国上下全国人民喜迎新世纪 room service 抗体使病原体聚集是特异性免疫吗 根毛细胞数量多有利于 钻石风幕机 大豆根毛细胞中不存在的结构是? 含1 molAlCl3 的溶液中加入含3.5 molKOH 的溶液,生成的沉淀的质量是多少? DNF女大枪技能量子爆弹改量子光束镭射炮,其他技能就是蓝色的,谁有? 请问浮动框架是什么东西?一般在什么情况下使用的? 向含有a molALCL3的溶液中加入含b molKOH的溶液,生成沉淀的物质的量选择对的:1.a mol 2.b mol 3.a/3 mol 4.b/3 mol 5.0 mol 6.(4a-b)mol如果3或4是对的,并求3或4详细解释.谢谢