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She knows a lot of things and she is h____(h开头|)

分类: 作业答案 • 2021-12-23 19:59:12

问题描述：

She knows a lot of things and she is h____(h开头|)
She work very h____

答

hardworking
她知道很多的东西,而且很用功.
She works very hard.她（学习/工作）很用功

language是不可数名词?she"s spent a lot of time learning the language ,so now she can speak(a few) little？可数的不是应该用a 不可数才用a little?
FeS的电离中c(Fe+)*c(s2-)=6.25*10^-18,又知溶液中,[c(H+)]^2*c(S2-)=1*10^-22现将适量的FeS,投入饱和溶液中,要使溶液的c(Fe2+)达到1mol/L,应调节溶液的PH为多少?
下列各组物质中,只用水就可以鉴别的是（）A 固体：NaCl、CaCO3、KMnO4B 气体：H2、O2、CO2C 液体：KCl溶液、稀H2SO4、稀HClD 固体：NaCl、CaCl2、MgCl2
FeS饱和溶液中c(Fe2+)c(S2与c（H+）*c(OH-)=Kw类似,FeS饱和溶液中c（Fe2+)*c(S2-)=Ksp.常温下Ksp=8.1*10-17.理论上FeS的溶解度为?而事实上其浓度远大于这个数值,其原因可能是?
频率控制字k=01000000H是什么意思
以“the train shakes back and forth…”开头的英语完型填空,
Fe2+和S2-反应是生成FeS还是发生双水解?Fe2+和S2-反应是生成FeS沉淀还是发生双水解生成Fe(OH)2和H2S?为什么不发生双水解?FeS溶解度小于Fe(OH)2,H2S会和Fe(OH)2反应生成FeS?
英语翻译It was the first day of our winter holiday.All of us were very happy.Why?Because we have one months to do things we love to do.We are free.Although we have some homework.But we can finish them in several days.And the rest time we can make good use of.My god!We have been very tired after hard studying.In winter holidays,I want to have full sleep and eat good food in order to replenish myself.Last but not the least,I will have a good rest.
充满H2、CO2、O2、N2四种气体的四支相同试管,倒立于水槽中,试管内水面上升最高的是什么
下列各组物质用水就能鉴别的是（　　）A. 固体:Na2SO4、NaCl、CaCO3B. 气体:O2、H2、CO2C. 固体:NaCl、AgCl、CuSO4D. 液体:酒精、甲醇、汽油
to的用法~如：This is the key to my bike .
社戏 “觉得我和他就要弥散在含着豆麦蕴藻之香的夜气里”这一句表达了怎样的思想感情?

She knows a lot of things and she is h____(h开头|)

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