—What’s the matter with you?

—______ the window , my finger was cut unexpectedly.

A．Cleaning

B．To clean

C．While cleaning

D．While I was cleaning

下列社会评价指标中，( )是指能够直接衡量项目的社会影响，特别是衡量受项目影响人群的收入和就业情况以及项目地区的具体目标人群对项目的看法等内容的重要指标。

A．客观指标

B．主观指标

C．辅助指标

D．核心指标