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问题 选择题

某无色溶液中，若加入溴水，溴水褪色，若加入金属铝，铝溶解并产生大量氢气，则该溶液中可能大量存在的离子组是

　  

A．Na+、OH—、S 2—、ClO—

B．H+、Na+、Fe2+、NO3—

　

C．K+、Ba2+、OH—、SO32—

D．Na+、K+、Ba2+、OH-

答案

答案：D

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Are you thinking about what to do in your free time? Come and join us ---Youth Club! Join in lessons and activities. It’s fun! For more information, call 34 789 256!
               Lessons
                 Activities
Monday -Friday 6:00-7:30 pm
Computer lessons for beginners
Saturday and Sunday 8:00-9:00 pm
Basketball and volleyball playgrounds open
Monday , Wednesday 7:30-9:30 pm
Dance lessons for dance-lovers
You can learn and enjoy wonderful dances.
Monday - Sunday
Swimming pool open
Tuesday , Thursday and Friday 6:30-7:30 pm
Cooking lessons
Learn to cook delicious dishes from all over China
The 2nd and last Saturday of every month 7:00-9:30 pm
Concert time---Enjoy Swedish rock, American jazz and beautiful songs from different parts of the world!
小题1:On which of the following days can’t you have computer lessons?
A．Monday.B．Wednesday.C．Friday.D．Sunday.
小题2:Rose is free after 7:20 pm . Which lessons can she take?
A．Computer lessons.B．Dance lessons.
C．Cooking lessons.D．Both computer and cooking lessons.
小题3:If Dick wants to swim after playing basketball ,when can he go to the club?
A．Monday and Wednesday.B．Monday and Sunday.
C．Saturday and Sunday.D．Monday to Sunday.
小题4:How often does the club have music concerts?
A．Twice a month.B．Twice a week.
C．Four times a month.D．Five times a week.
小题5:If you want to know the cost of the lessons , you can ______ to get the information.
A．only go to the clubB．call 34 789 256
C．read the ads above carefullyD．join the club and ask others
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单项选择题

与水液代谢和呼吸运动关系密切的是（）。

A.心与肾

B.肝与肾

C.脾与肾

D.肺与脾

E.肺与肾
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