视倾向
参考答案：在层面上凡与该点走向线不直交的任一直线均为视倾斜线，其在水平面上投影线所指的倾斜方向，叫视倾向或假倾向。
A、B两地相距36千米．甲从A地出发步行到B地，乙从B地出发步行到A地．两人同时出发，4小时后相遇；6小时后，甲所余路程为乙所余路程的2倍．求两人的速度．
You'd better get up _____ possible _____ you can catch the early bus. [ ]
A. as soon as, so that
B. as early as, so that
C. as soon as, in order
D. as early as, in order
