后退法的优点是()。A、减轻轮胎磨损 B、推土机摊平工作量小 C、使堆石填筑速度加快 D、虽料物稍有分离,但对坝料质量无明显影响

作者: rantiku 人气: - 评论: 0
问题 后退法的优点是()。
选项 A、减轻轮胎磨损 B、推土机摊平工作量小 C、使堆石填筑速度加快 D、虽料物稍有分离,但对坝料质量无明显影响
答案 A
解析 新版教材P80 后退法的优点是汽车可在压平的坝面上行驶,减轻轮胎磨损。所以选A

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