分子生物学实验

（）1.What are these?A.An apple tree Who's your best friend?划分句子成分如题 求2个有意义的革命小故事（400左右） 红毛毡这个故事的寓意 红毛毡这个故事有什么寓意?十万火急 一台额定电压为220v 制冷额定功率为1000w的空调 温度设定从原来24℃改为28℃使电能表平均每天少2.5kw.h 求①这台空调制冷时,工作电流为多少?②这台空调一个月（30天）可节约多少电能?③有两 小麦上的蚜虫在那个时期发生? 小麦上发生的蚜虫,有少数是黑色的,黑色的蚜虫和常见的绿蚜虫有什么区别? by wording 如何解释can you explain the schedule to me by wordingby wording 如何翻译谢谢 一批产品的合格率是99%,就是说什么占什么的100分之什么 在哪里可以买到2008年版英语奥林匹克八年级（初二）?我需要书,有磁带更好.11月6日后问题无效. 英语奥林匹克初二今年要考口试吗初二的决赛也不用考口语吗 英语奥林匹克初二2010的答案?（初赛的） by的用法Count your age by friends,not years.Count your life by smiles,not tears.这句话是不是有错误?by smiles为什么要加s?是因by后面要跟单数吗?那 friend为什么又加s?Count your age by friends,not years.Count your life by s 讲解一下VIA和BY的用法区别? 英语翻译Validation is the process by which a piece of converted data has one or more correctness checks applied to it 棉花蚜虫怎么治? by 的用法及详细解释(简便一点哦)我要重新补上英语,现在我还上初三,再也不能孩子气了,希望得到大家的协助.简便的吧,要精髓,否则多了怕看不懂. 什么药治蚜虫 请帮忙解释一个介词BY的用法An important factor in a market-oriented economy is the mechanism by which consumer demands can be expressed and responded to by producers.请问为什么需要这句话中的BY,这个BY是与什么对应的,删 治蚜虫用什么药 英语翻译Annual Meeting：The annual meeting of the Members of the LLC for the transaction of such business as may properly come before the meeting shall be held each year on the 1st Wednesday in September at 9:00 a.m.at a place and time to be set 包天仁英语奥林匹克初二年级2008版的在哪里购买?急 英语翻译to hold unto the said transferee his executors,administrators or assigns,subject to the several conditions upon which we hold the same at the time of execution hereof.and we the said transferee do hereby agree to take the said shares subj 2008年的英语奥林匹克答案, 英语翻译Each of the persons signing this Agreement (and any related documents) on behalf of the undersigned has the power and authority (and has been duly authorized) to execute the same. “客家”的来历我“家在大槐树下”是怎么回事？ 客家人的起源是? 客家的来历? 几个初一下册的英语问题（鲁教版）高手进~一：在句子中,什么时候用kind,什么时候用kinds?二：about,around在句子中怎么用,区别又是什么?三：drum平常是用复数还是单数,若是复数,为什么?四：hel 如何消灭蚜虫 如何杀死蚜虫?香烟能否杀死蚜虫?