水产干制品应通过科学实验确定为保证成品的水分活度≤（）所要满足的因素。
参考答案：0.85
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．木尘
My father is handsome and________,but sometimes he is not________me.[ ]
A. energy; patient to
B. energetic; patient to
C. energy; patient with
D. energetic; patient with
