展成法所用刀具和被加工齿轮的模数m和压力角α相同。
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A. Study programmes.
B. Outdoor programmes.
C. Socialising programmes.
D. Typical sports programmes.
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A. To let students have fun.
B. To teach students to do those sports well.
C. To let students enjoy climbing mountains.
D. To show students how to jump out of an aeroplane.
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A. Students will receive transport and equipment.
B. Students will feel excited with outdoor activities.
C. Students will have special experiences to enrich their lives.
D. Students will form close relationships with their classmates.
路基施工主要可以归纳为施工前的准备工作和基本工作两大部分，施工前的准备工作可以分为哪几个方面？
A. 组织准备阶段
B. 技术准备阶段
C. 人员准备阶段
D. 物质准备阶段
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