The ______ of the rural world because of distance and the lack of transport facilities is compounded by the paucity of the information media.

A．inaccessibility

B．isolation

C．penetration

D．negligence

下列指计算公式中，不正确的是( )。

A．不良贷款率=(次级类贷款+可疑类贷款+损失类贷款)/各项贷款×100%

B．预期损失率=预期损失/资产风险暴露×100%

C．单一客户贷款集中度=最大一家客户贷款总额/贷款类资产总额×100%

D．核心存款指标=核心存款/总资产