化工基础数据可分为两类：物性数据和热力学数据。
参考答案：对
From the dates on the gold coin, we know that it was made 500 years ago.[ ]
A．marking
B．marked
C．to mark
D．to be marked
当出窑熟料f-CaO过高时，应采取哪些措施减少它的危害？
