烧结造球制粒是为了改善烧结料的粒度组成,增加(),强化烧结过程,提高烧结矿产质量。
A.均匀性
B.透气性
C.导热性
参考答案:B
It was the man______ on the bed with his eyes open who_____the book open on the desk just now.
A.lain; lay
B.lying ;laid
C.lay; lay
D.lying ;lied
纳什(Nash)均衡要求各参与者都采用其优势策略。