A:①②
B:②③
C:③④
D:①④
用质量分数为6%的氯化钠溶液(密度为1.04g/cm3),配制100g质量分数为3%的氯化钠溶液.配制过程为:①计算(计算结果保留一位小数):需6%的氯化钠溶液____ mL,水 ____ g.②量取;③在____ (仪器名称)中____ ;④装瓶、贴标签.
A
Ping-pong Club
Do you like to play ping-pong? Do you want to play ping-pong well? Mr. Cai can teach you. You can come here every Saturday afternoon.
Tel: 368-5788
Add: Room 212 in School's PE Building.
Musicians Wanted
Are you a music lover? Can you sing or dance? Can you play the guitar? Can you play the violin? Welcome to our Star Rock Band. Please call Tina at 898-3343 from Monday to Friday (8:30-11:00 am). We will meet every Sunday morning.
写作训练
【写法借鉴】本文以形绘神地表现了父亲鲜明的个性特点。如父亲放鞭炮时的神态、动作刻画,表现了父亲既高兴,又尴尬的心情,符合人物个性,使人读来如见其人。
【片段仿写】请你认真观察母亲的外貌、动作,进行细致的描写,表现母亲的特点。(100字左右)