某物资资源一直遵守既定的时间安排，说明该物资资源的（）性能标准良好。
A、质量
B、弹性
C、可靠度
D、成本
参考答案：C
What would have happened ______as far as the river bank ?[ ]
A. Bob had walked farther
B. if Bob should walk farther
C. had Bob walked farther
D. if Bob walked farther
管线与公路交叉或接近的基本原则有哪些？
