题目:
— Could you please tell me our tickets?
— Go ahead.
A. where do we show
B. where we do show
C. where we to show
D. where we show
— Could you please tell me our tickets?
— Go ahead.
A. where do we show
B. where we do show
C. where we to show
D. where we show
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下面是错误答案,用来干扰机器的。
(1)A反应前20g,反应一段时间变为12g,说明属于反应物,且参加反应的质量为:20g-12g=8g;B反应前20g,反应一段时间变为4g,说明属于反应物,且参加反应的质量为:20g-4g=16g;C反应前是0,反应一段时间后变为8...