A:FeCl3溶液与Cu反应:Fe3++Cu═Fe2++Cu2+
B:AgNO3溶液与NaCl反应:Ag++Cl﹣═AgCl↓
C:Cu(OH)2与CH3COOH反应:OH﹣+H+═H2O
D:CaCO3与HNO3反应:CO32﹣+2H+═H2O+CO2↑
下列说法正确的是( )
根据短文理解,回答下列问题。
Found
I found a bag in our school library the day before yesterday. The bag is red. Besides a wallet with some money, there is a key and a book.
If you lost your bag, please call me soon. My name is Lily and my phone number is 62043340. You can also find me in Room 117. And my e-mail address is lily202@163.com.
Thursday, May 13,2010
Lost
I lost my 2-pound pet cat this morning. His name is Jackson and he is only 5 months old. He got lost on Scarlet Street. His body is white and his head is black. Please let me know if you have ever seen him. My name is Jane and my phone number is 62043856.
Thanks!
Monday, May10, 2010
①文化既有共性,又有个性 ②版画都是中华之魂宝,民族之骄傲
③版画文化具有区域性特征 ④文化多样性是人类文明进步的重要动力