《八月桂花遍地开》，这首革命民歌反映了苏区建立革命根据地时期工农红军热火朝天的革命斗争精神和场面，洋溢着饱满的革命热情。
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Your answer to Question 1 is ______.
A. Franklin
B. Einstein
C. Both Einstein and Franklin
D. Neither Einstein nor Franklin
Your answer to Question 2 is ______.
A. Einstein was interested in electricity while Franklin was not.
B. Franklin was interested in electricity while Einstein was not.
C. Einstein was a great experimentalist while Franklin was not.
D. Franklin was a great experimentalist while Einstein was not.
Your answer to Question 3 is ______.
A. Theorists are more creative than experimentalists.
B. Experimentalists are more creative than theorists.
C. Our minds can work creatively in both theory and experimentalism.
D. Creativity plays no role in the fields of theory and experimentalism.
汽车在起步、变速瞬间,车速不稳定时,驱动桥内发出“咯噔、咯噔”的金属撞击声,其主要原因可能是()。
A. 驱动桥润滑不良
B. 差速器轴承过紧
C. 主被齿轮间啮合间隙过小
D. 驱动桥传动间隙过大
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