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【简答题】
用规定方法收集 空气中的 粒子,通过专门的 ,在适宜的 下繁殖到可见的 ,称为浮游菌。
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反馈参考答案：
举一反三
【单选题】In conclusion, the author emphasizes the fact that ( ).
A.
he owes much of his success in career to his family's good name
B.
he always look up to the family's good reputation as treasures inherited from his parents
C.
he and his children always cherish the family's good name and try hard to live up to it
D.
he is still held in respect when he is back in his hometown
【简答题】蓄电池的充电方法有: 、 、 。 车上发电机对蓄电池的充电属于 。
【简答题】电动汽车蓄电池的充电方法可以分为 充电方法和 充电方法。
【简答题】蓄电池的充电方法有哪3 种?根据充电目的不同,蓄电池的充电作业又有哪 3类?(6 分)
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