The climate change conference has come to __________ end, but the developing countries are dissatisfied with __________ small step that the developed countries have taken to reduce the emission(排放) of water gases.

A．不填， a

B．不填， the

C．an , a

D．an, the

在对商业银行个人客户进行信用风险识别时，调查、识别个人客户的信用风险，重点调查可能影响第一还款来源的因素。比如，主要收入来源为了资收入的，应检查其提供的商业银行存单等财产状况。（）