非圆曲线数值计算一般步骤有选择插补方式、（）、选择数学模型、根据算法画出计算机处理流程图、上机调试程序。
参考答案：确定编程允许误差
A．(A) The customer must pay cash for his insurance.
B．(B) The customer must pay for his insurance by credit card.
C．(C) The customer must get a money order to pay for his insurance.
D．(D) Tile customer must get a traveler’s check to pay for his insurance.
合同风险属于()。
A．组织风险
B．经济与管理风险
C．工程环境风险
D．技术风险
