A:金属钠
B:新制的氢氧化铜悬浊液
C:石蕊试液
D:NaHCO3溶液
根据文章意思,正确排序。
①Yes, we have a new music teacher.
②Do you like her?
③Is she old?
④Do you have new teachers?
⑤ No, she isn’t. She is funny.
⑥Yes, we all like her.
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九年级(1)小辉依据下列人物的事迹及影响,概括了以下主题,你认为最合适的是 ( )