下列关于基坑开挖的安全措施中说法正确的是（）。

A.挖土方前对周围环境要认真检查，不能在危险岩石或建筑物下面作业

B.深基坑四周设防护栏杆，人员上下要有专用爬梯

C.人工挖基坑时，操作人员之间要保持安全距离，一般大于1.5m

D.机械挖土，应严格控制开挖面坡度和分层厚度，防止边坡和挖土机下的土体滑动

E.为防止基坑浸泡，除做好排水沟外，要在坑四周做挡水堤，防止地面水流入坑内

Which of the following would be an appropriate expected outcome of nursing care for the client with ulcerative colitis()

A. The client experiences decreased frequency of constipation.

B. The client accepts that an ileostomy will be necessary.

C. The client maintains an ideal body weight.

D. The client verbalizes the importance of restricting fluids.