埋弧自动焊属于()保护.
A.渣保护
B.气保护
C.渣-气联合保护
D.渣、气保护
参考答案:A
企业会计部门内部专门管理会计档案的人员也必须取得会计从业资格证书。()
catch the first bus, he got up very early this morning.
A.In order to
B.In order that
C.So as to
D.So that