—Do you think Jim can manage it by himself?

—________. He is expert at dealing with such a matter.

A．Take care

B．I'm not sure

C．Don't worry

D．Don't mention it

膨胀压缩机仪表气是温热的干燥气体，压力参数：（）

A、最小压力300KpAg，最大压力800KpAg

B、最小压力300KpAg，最大压力1000KpAg

C、最小压力500KpAg，最大压力800KpAg

D、最小压力200KpAg，最大压力500KpAg