题目

下列离子方程式书写正确的是（     ） A.向H218O中投入Na2O2固体：2H218O+ 2Na2O2 = 4Na++4OH-+ 18O2↑ B.NaClO溶液中通入少量CO2(参考Ka：H2CO3>HClO>HCO3-)：2ClO-+CO2+H2O = 2HClO+CO32- C.ICl溶于冷的稀KOH溶液中：ICl+2OH- = Cl-+IO-+H2O D.10mL0.5mol/L的明矾溶液与20mL0.5mol/LBa(OH)2溶液混合：3Ba2++6OH-+2Al3++3SO42- = 3BaSO4↓+2Al(OH)3↓ 答案：CI am a middle school student. I like fashionable（时尚的） clothes. I like wearing a scarf（围巾）. I like red shirts and I have curly hair. They all look cool. My parents and teachers sometimes ask me not to do so, but I don't mind. These are my own(自己的 )things. Don't you think so? ---------Sally My uncle is 40 years old He works for a magazine(杂志). He writes articles（文章） for children. He visits many places and talks with many children.  He thinks children should not watch TV too much and some TV shows are not good for them.--------Barry I study in a middle school. I have many rules at school. I can't be late for school,l have to wear a school uniform at school. I can't eat or sing in the classroom. Miss Yang,our English teacher,is very strict with us.---------- Mona根据短文内容，选择最佳答案。小题1:Sally's hair is___________.A．redB．blackC．straightD．curly小题2:__________writes articles for kids.A．Barry's uncleB．BarryC．SallyD．Miss Yang小题3:Mona can __________.A．be late for schoolB．wear a school uniform at schoolC．eat or sing in the classroom D．wear her own clothes at school小题4:Which of the following is NOT true about Barry's uncle?A．He is 40 years old.B．He does not let Barry watch TV.C．He thinks children should not watch TV too much.D．He visits many places and talks with many children.小题5:From the information above(上面的信息) ,we can know________.A．Sally and Mona are workersB．Sally minds what others think of herC．Miss Yang is an English teacherD．Miss Yang isn't strict with her students