iscreetly啥意思?答：iscreetly 我谨慎地
quarters of paris造句 quarters of parisの例文答：The 2, 035-square-foot apartment has a nearly 7, 000-square-foot private garden and is on the Rue du Bac in one of the most desirable quarters of Paris . After this, the June Days Uprising broke out, over the course of 24 26 June, when the eastern industrial quarter of Paris , ...
狄更斯的那句“这是最好的时代,也是最坏的时代”的英语原文是怎样的...答：小说英译本原文 It was the best of times, it was the worst of times, it was the age of wisdom, it was the age of foolishness, it was the epoch of belief, it was the epoch of incredulity, it was the season of Light, it was the season of Darkness, it was the spring ...
题目为The influence of TV or computer的英语作文 速要!答：On the one hand, it can be very helpful to people who need it and treat it corTectly. The computer can broaden our knowledge about the world. It can also help us learn more about many fields of studies quickly: science, medicine, arts and so on. It is very convenient to ...
...We'll have a party a.be b.is c.are d.will be答：B C B C C A A A C C
Youth is hot and bold,Age is weak and cold,Youth is wildand Age i...答：1 When my love swears that she is made of truth, I do believe her, though I know she lies, That she might think me some untutored youth, Unskilful in the world's false forgeries. Thus vainly thinking that she thinks me young, Although I know my years be past the best, I smiling ...
E16-4 Scrvice is currcntly scrambllcd 是什么意思答：E16-4（你的设备）上的服务（系统程序操作等）正发生冲突！（可能是你的手机程序不兼容或者手机内存不足）
relictantly*什么意思答：adv.不情愿地，勉强地;网络 不情愿地,勉强地; 勉强; 勉强地;1 They shuffled along somewhat reluctantly.他们有些不情愿地拖着脚走着。2 Your boss 's boss is actually a busy person and will back out of going to Switzerland, even after reluctantly agreeing months ago.你的老板的老板日...
自我介绍英文版答：northeast of china,and i am curruently a senior student at beijing XX uni.my major is packaging engineering.and i will receive my bachelor degree after my graduation in june.in the past 4 years,i spend most of my time on study,i have passed CET4/6 with a ease.and i have acquired ...
differ different 和difference diffeiently在用法上有什么不同?_百度...答：(1) 名词=difference: I can't see any difference 差异 between these two pictures; We had a difference 分歧 of opinion; If you buy it for me I'll give you $6 now and make up the difference later.差额 (2)动词=differ: His story differed 不同 from his mother's in ...
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席霍戴13570609579：
有A、B、C、D四种可溶性盐,其所含阳离子依次为Ba2+、Ag+、NH+4、Cu2+,阴离子可能是NO - 3、Cl - 、SO2 - 4、CO2 - 3中的某一种,每种离子只存在于... -
临海市1288回复：
[答案] 由于是可溶性盐,所以溶液中存在的盐离子和阴离子对应物质一定是可溶性,根据盐类物质溶解性情况可知:Ba2+不能和SO42-、CO32-结合,而只能和NO3-、Cl-;Ag+不能和SO42-、Cl-、CO32-三种离子结合,而只能和NO3-结合,则一定是BaCl2...
席霍戴13570609579：
配平()Fe3O4+()CO=()Fe+()CO2,最好用定一法(又称分数法)其它的方法也可以①配平()Fe3O4+()CO=()Fe+()CO2要过程②( )FeCO3+( )O2+( )H2... -
临海市1288回复：
[答案] Fe3O4+CO=Fe+CO2 定一法 设aFe3O4+bCO=cFe+dCO2 Fe:3a=c O:4a+b=2d C:b=d 观察这组方程 ,设b或者d=1 很容易解, 于是设b=1 ,这样d=1 然后带入其他等式,a=1/4 ,c=3/4 导入 1/4Fe3O4+1CO==3/4Fe+1CO2 整理 Fe3O4+4CO==3Fe+4...
席霍戴13570609579：
氢气,氧气,CO,CO2,SO2,CL2,NO,NH3,H2O,等检验化学式还有 K+,Mg+,Al3+,Fe2+,Fe3+的检验的化学方程式一共14种,物质的检验的方程式, -
临海市1288回复：
[答案] 楼主好! 氢气:导出点燃,用一个干燥烧杯罩在上面,发现烧杯出现水雾. 2H2+O2==点燃==2H2O 氧气:带火星的木条放在瓶口,发现木条复燃.这个好像没什么方程式可言~ C+O2==点燃==CO2 CO:把该气体通过灼热的氧化铜后,再把生成的气体...
席霍戴13570609579：
一氧化碳的还原性.CO+CuO △ . Cu+CO2CO+CuO △ . Cu+CO2. -
临海市1288回复：
[答案] 一氧化碳会与氧化铜发生还原反应,把铜从其氧化物中置换出来,生成铜与二氧化碳,反应的化学方程式为:CO+CuO △ . Cu+CO2
席霍戴13570609579：
工业上用氨碱法制纯碱,主要发生两个反应 NH3+CO2+H2O+NACL=NAHCO3+NH4CL( 1 ) 2NAHCO3=△=NA2CO3+C02+H20由NACL制取NAHCO3时,... -
临海市1288回复：
[答案] 根据:NH3+CO2+H2O+NaCl=NaHCO3+NH4Cl 2NaHCO3=Na2CO3+CO2+H2O可以知道:2NaCl----------2NaHCO3----------Na2CO3 2*84 106 ...
席霍戴13570609579：
如图,已知四边形ABCD中,BD⊥AC,求证AB的平方+CD的平方=AD的平方+BC的平方 -
临海市1288回复：
证明: 设BD与AC相交于O点,则由勾股定理有 AB²+CD²=(A0²+BO²)+(DO²+CO²) =AO²+BO²+CO²+DO² AD²+BC²=(A0²+DO²)+(BO²+CO²) =AO²+BO²+CO²+DO² ∴ AB²+CD²=AD²+BC²,得证.
