正常运行中,沸腾炉的炉堂温度范围850~1050℃
参考答案:对
—_________ are your shorts?
—They are yellow.[ ]
A. Which colour
B. What colour
C. Where
矽肺可见
A.爆米花样钙化B.分叶征、脐凹征C.蝶翼征D.伪足征E.肺门部壳状钙化