路线价
参考答案：路线价是指面临特定街道，接近性相等的市街地，设定标准深度，求取在该深度上多个宗地的平均单价(4分)。
水玻璃砂的粘结剂是硅酸钠的水溶液，呈碱性。
Software quality assurance is now an (50) sub-discipline of software engineering. As Bucldy and Oston point out, (51) software quality assurance is likely to lead to an ultimate (52) of software costs. However, the major hurdle in the path of software management in this area is the lack of (53) software standards. The development of accepted and generally applicable standards should be one of the principal goals of (54) in software engineering.
52（）
A．balance
B．growth
C．production
D．reduction
