重组合作用?
参考答案:
温度、压力或其它物理化学条件发生变化,导致原先的矿物组合失衡,形成新条件下稳定的矿物组合。如:粘土矿物→红柱石等矿物;含钙、铁的粘土岩→石榴子石。
It is in Qingdao_____ you’re going to pay a visit to _____ this kind of washing machine is produced.
A./; that
B.where; which
C./; where
D.that; which
砼浇筑工艺包括哪些工序?砼养护有哪些方法?