凸焊主要用于焊接()和低合金钢的冲压件。
A.超薄钢
B.低碳钢
C.氧化皮
D.硅钢
参考答案:B
– Have you ____ your brother to give up smoking?
-- No. I talked to him yesterday but he would have none of my advice.
A.persuaded
B.advised
C.promised
D.suggested
简述资产风险管理自律监管现场监管的步骤和程序。