问题
选择题
Mum ______ to us. “Be quiet! Your little sister is sleeping.”
A．shouted
B．explained
C．whispered
D．replied
答案
答案：C
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Mum ______ to us. “Be quiet! Your little sister is sleeping.”
A．shouted
B．explained
C．whispered
D．replied
答案：C
B（g）＋C（g），增大压强正反应速率减小，逆反应速率增大