The United States hoped to form an alliance with its neighboring countries to counterattack any outside influence in the Americas.
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Kennedy emphasized that the United States had no intention of breaking the delicate balance of military power by arms race.
A. 对
B. 错
设计车速V≥60km/h时,反向曲线间的直线最小长度以不小于()为宜。
A. 2V(m)
B. 2V(km)
C. 6v(m)
D. 6v(km)
当道路的设计车速为80km/h时,同向曲线间的直线段最小常度以不小于()为宜。
A. 80m
B. 160m
C. 320m
D. 480m
基本型平曲线,其回旋线、圆曲线、回旋线的长度之比宜为()。
A. 1:1:1
B. 1:2:2
C. 1:2:3
D. 3:2:1
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