在分部分项工程量清单的主要内容中，()是对项目的准确描述，是确定一个清单项目综合单价不可缺少的重要依据，是区分清单项目的依据，是履行合同义务的基础。

A.项目编码

B.项目名称

C.项目特征

D.工程量

A client who has been using crutches at home for t week reports that he is having trouble using the crutches because his armpits hurt and his fingers tingle. What would be the nurse’s most appropriate response（）

A. "You need to do more arm exercises. It sounds like your muscles need strengthening. "

B. "That’s normal. As you adjust to the crutches, the discomfort will diminish. "

C. "Be sure to take your pain medication before ambulating. That will help your discomfort. "

D. "Let me watch you ambulate. Your crutches or technique may need some adjustment. "