消除碱富集的办法有（），调轻负荷，控制合适的炉温。
参考答案：降低炉渣碱度
. A party was given in the hall _______ the guests from France.
A．in favor of
B．in need of
C．in search of
D．in honor of
埋弧焊与手工电弧焊相比的特点是？
