正常经营收入不足以偿还贷款，需要诉诸抵押和保证的贷款，在贷款分类中可能属于的最优级别

一个人获得成功并不仅仅在于智力的高低，还需要有坚强的意志和良好的性格。[ ]

The computer center, ____ last year, is very popular among the students m this school. [ ]

A. open

B. opening

C. having opened

D. opened

When the girl learnt that her boy friend was ____ in the earthquake, she _____.

A．injured; burst in tear

B．killing; burst into tears

C．still alive; burst into tears

D．missing; burst into laughter

银行可以使用久期缺口来测量其资产和负债的信用风险。 ( )

什么叫氯化？