you can find out about water in book 6,under w翻译

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• 英语翻译Big school have been a serious problem for students for a lont time .Maybe your schoolbag is too__1_ to carry ,and it toubles a lot __2___you want to find a look out to read Nowan e-textbook will __3__ you.It is said that e-textbooks are going tobe __4___ in Chinese middle schools.An e-textbook,in fact,is a small ___5__for students .It is much __6__than a usual schholbag ang easy to carry.Though it is as small as a book ,it can __7__ all the mater
• you can find out about water in book 6,under w翻译
• 改病句 快~~~~~~~~~~~~~在线等!. Gao shan is thiner than his brother. 2. Are your hair as long as hers? 3. Yang Ling’s uncle is stronger and tall than her father. 4. There are a little dog and two cats under the tree. 5. My mum say Jimmy is also her child. 6. I am three months older than he. 7. Go along the street, and turn left at second crossing. 8. You can take bus No.2 and got off at the third stop. 9. I want to buy a interesting book about football. 10. W
• 英语翻译you may get fined if you give somebody a lift on your bike.we may not be able to find the machine we need.she said she might not be able to come to themeeting.i thought the book might be too difficult for us.you needn't copy out the whole text.we ought to give them as much help as we can.you ought to have told us about your difficulties.i should be more careful next time.may i start the machine now?no,you mustn't.they haven't finished repairing it
• 英语翻译1.Find words in 1a for the lists below.2.Fill in the blanks below with the words from 1a.3.Choose five words from 1a and write sentences.Say the sentences.Don't say the words.Say BLANK.Your partner guesses the words.4.Write the places in the boxes on the street.5.How mang jobs can you think of?Make a list.6.Ask your partner questions about the places .Draw your partner's street.7.Choose a job.Your partner asks questions to find out what you do.8.W
• you can find out about water in book 6,under w翻译
• 有一包白色粉末,其中可能含有Ba(NO3)2 ,CaCl2, K2CO3,现做以下实验：（1）将部分粉末加入水中,振荡有白色沉淀生成；（2）向（1）的悬浊液中加入过量的稀硝酸,白色沉淀消失,并有气泡产生；（3）取少量（2）的溶液滴入AgNO3溶液,有白色沉淀生成.问题：根据上述实验现象,判断原白色粉末中肯定含有什么物质,可能含有什么物质,写出有关反应的离子方程式.帮!
• 将15克碳酸钠粉末与一定质量的稀盐酸恰好完全反应,得到溶质质量分数为25%的氯化钙溶液,求稀盐酸中溶质的