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家里的自来水有味道怎么办 张家港哪里有改装搅拌车罐子的厂 为什么水有味道~ 描写春天,冬天的文段 200字（好的追分~）别忘了,还有冬天的 求200字描写春天的好段,必须是200字啊,Please开恩那 为什么说"碱金属里面只有锂可以生成氮化物",不是有氮化钠吗? 碱金属氮化物的稳定性书上有一道题说 碱金属氮化物中 Li的氮化物最稳定 我有如下几个问题1.如何判断一个简单离子化合物的稳定性?是从晶格能考虑还是从离子极化考虑?就上面这道题而言 汽车尾气的氮化物怎么形成的? I don't like myself.什么意思 我不喜欢把我自己和同学比较 I don't like to ------- myself ------- my classmates. But I don`t want to depend on anyone else,I`d rather rescue myself” 无水(分析纯)酒精有味道吗?为什么我买的没什么味道无水（分析纯）酒精有味道吗?为什么我买的没什么味道,把瓶盖打开鼻子凑上去味才能觉得有点刺鼻,但是酒精味非常淡,几乎没有了,这正 化学问题,水有味道嘛? The advantages and disadvantages of a large population have long been a subject of discussion among economists.It has been argued that the supply of good land is limited.To feed a large population,poor land must be cultivated (耕种) and the good la 全封闭搅拌车拉的多了安全码? 全封闭搅拌车为什么可以恒温、恒湿? 俗名为苏打的化学式为是?用于发酵面包的小苏打的化学式是?碱金属元素中金属性最强的是?在k和na中,与酸 I like to presend myself.l miss our past.什么意思 I like to present myself www.8461.net.I miss our I like to present myself,I miss our past.------ 我喜欢现在的自己,我怀念过去的我们.这句英语前半句应该怎么翻译?后面的是原来的翻译,从前后逻辑来看前半句似乎意思对,但是从英语字面来看貌似不 l like to present my self l miss our What's the main cause of the accident?Driving__after the drink.A.fast B.faster答案说选A,为什么不能选B?为什么要用原级?麻烦说明下理由谢谢! 取暖器加电阻的问题有一取暖器功率800w,220V,感觉太热了,想加一个电阻怎么加多大的电阻,取暖器本身没有档位.最好能告诉我算法.如换二极管怎么选用？ 电暖气哪个档的电阻大高温还是低温的?求功率用I2R还是U2/R 家里有一小太阳取暖器,电阻丝坏了,因买不到合适的电阻丝,只买到一小功率的电阻丝,求高手赐教：不敢直接接上去,求高手赐教：是不是直接在电路上串联一合适的电阻,再接上电阻丝就不会 I want to learn English.Who can help me?的意思 he isn't so tall as his younger brother"in fact it was the best part of the journey 的英文同义句是就是he is（填）tall than his younger brother和（填），it was the best part of the journey You twin brother什么younger than you?好像是looks How many hours do you work a day?主语是hours还是you? Haw many hours do you work __ a day.介词填空 英语翻译people caught driving while drunk twice in the same year will have their licenses taken away for up to five years.英语报纸的翻译,周一要交作业,烦各位大哥大姐翻译一下. 16.The accident has something _____ with drunk driving.The accident has something _____ with drunk driving.A.doB.doingC.to doD.did这题选择什么呢,希望有个小小的解释谢谢