采集病史时应注意询问接触何种粉尘

A．煤尘

B．矽尘

C．石棉尘

D．灰尘

E．煤尘、矽尘及煤矽尘

If a person has not had enough sleep, his actions will give him_____during the day.

A．away

B．up

C．in

D．back