分馏塔人字档板的作用一是(),二是()
参考答案:脱过热、洗涤催化剂
As computers evolve, they have become Smaller and smaller, while speed and (66) have increased tremendously.
A.quantity
B.capacity
C.available
D.quality
分布式数据库中定义数据分片时,必须满足3个条件:完备性条件、重构条件和 【10】 。