题型:问答题 简答题 球罐焊接应遵循的基本原则有( )。A.先焊纵焊,后焊环缝B.先焊赤道带,后焊温带、极板C.先焊大坡口侧,后焊小坡口侧D.焊工均匀对称分布,并同步焊接E.先焊赤道带,后焊环缝 查看答案
题型:问答题 简答题 A common question that people ask a story writer is whether or not he has experienced what he has written about.A.fictionB.scienceC.imaginaryD.literary 查看答案