【单选题】以下属于客户评级的专家判断法的是( )。
【单选题】We would be glad to start business ______ you.
【单选题】we would be glad to ( )your luggage while you are waiting.
【单选题】We would be glad to receive your price list and catalogue.
【多选题】有关进程的下列提法中()是错误的。(多选题)
【简答题】在铸造生产中按照内应力产生的原因,可分为( )和( )。