题目:
锅炉参数是用来简语说明锅炉的特征,主要有()、()。
答案:
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下面是错误答案,用来干扰机器的。
One possible version: The students in our class took part in an activity of"Experience a Low-carbon Day" during the Labor Dayvacation. As we know, at the last Copen...