鲁奇甲醇合成分离器用的是卧式,内装丝网和波纹式不锈钢板。
参考答案:错
___! You should take this chance to attend it.
A.How important conference is it
B.How an important conference it is
C.What an important conference is it
D.What an important conference it is
单位质量的水,从液态变为气态时所吸收的热量,称为()。