熟料形成过程中,固相反应的特点是()
A、放出热量
B、吸收热量
C、既不吸热也不放热
参考答案:A
—They didn’t go swimming yesterday, did they?
—_______ I saw them skate in the park.[ ]
A. Yes, they did.
B. No, they didn’t.
C. Yes, they were.
D. No, they weren’t.
品牌传播的信息规律是()。
A.多元性
B.广泛性
C.聚合性
D.长远性