猪肉大葱馅饺子,其中猪肉含量30%,净重500g
参考答案:14(1902.2000)
— ____________ is the school from the post office?
— It's about three kilometers away. [ ]
A. How many
B. How far
C. How much
下列印模材料制取印模后,室温放置时存在凝溢和渗润现象的是
A.硅橡胶印模材料B.印模石膏C.印模蜡D.藻酸盐印模材料E.聚醚橡胶印模材料