森林防火工作实行什么负责制?()
A.防火办主任
B.各级林业主管部门负责人
C.各级林业主管部门分管负责人
D.各级人民政府行政领导
参考答案:D
The documents you should provide are contract, IdC, invoice and B/L, L/C is the abbreviation for ()B/L is the abbreviation for ()
A.Letter Of Credit, Pacling List
B.Leaking of Containers, Bill Of Laing
C.Letter of Credit, Bill of Lading
D.Leaking of Contaihers, Pacling List
怎样简化土中应力计算模型?在工程中应注意哪些问题?