下列属于预应力锚索施工钻机成孔工作要点的是（）

下列属于预应力锚索施工钻机成孔工作要点的是 (Answer: ABCE) A. 采用专用锚索机带套筒机械作业成孔 B. 钻进达到设计深度之后，立即停钻 C. 钻机安装牢固平稳 E. 钻进至岩面时，应采用空压机，更换成潜孔钻跟风钻进 Explanation: The question asks about the key points in the construction drilling process for prestressed anchor bolts. The correct answers are A, B, C, and E because they are the correct procedures or considerations during the drilling process for prestressed anchor bolts. Option D is incorrect because reaching the design depth and immediately stopping drilling is not recommended in the construction process.