____

____

____

根据所提供的信息, 选择正确的答案。

Piano Player Wanted

Boys and girls, are you music fans? Can you sing or dance? Can you play the piano?

Welcome to our Sky Rock Band.

Please call Victor at 6891-3453 or give an email to music@yahoo. com.

                                                                                    Let's Learn Japanese

Can you speak Japanese? Do you want to learn Japanese? Come to the Japanese club（俱乐部）now.

Time: 9:00 a. m. -11:30 a. m. (from Monday to Friday)

Call Henry at 6543-1248.

Ping-pong Club

Do you like to play ping-pong? Do you want to play ping-pong well? Mr. Chen can teach you. You can come here every Friday afternoon.

Tel: 8623-1940

Add: Room 102 in School’s P. E. Building.

                                                                                                Wanted

Can you swim? Do you like children? Can you help them with swimming on weekends? Come here!

Call Jane at 8330-9785 for more information (信息).

小浩同学在整理“家庭化学日志”，请你帮助他完成：
（1）紫卷心菜的汁液有类似紫色石蕊试液的作用！将紫卷心菜汁滴入食醋中，可显出____色，证明食醋的pH____7（选填＞、＜或＝）。
（2）桌上摆放的竹炭雕屏可以起到静化室内空气的作用，这是因为竹炭具有____性。
（3）妈妈给盆花施用了碳酸氢铵（NH₄HCO₃），这是一种____（选填氮肥，或磷肥，或复合肥）,它属于____（选填酸、碱、盐或氧化物）。