客休关怀流程服务顾问应陪同客户到客休室，并介绍给客户关系部人员，简要说明维修项目及（）。
参考答案：完工时间
An analyst does research about the income statement of a manufacturing company. Which of the following is least likely deducted from gross profit to calculate operating income for the manufacturing company（）
A. Interest expense.
B. Depreciation expense.
C. Research and development cost.
男性，29岁。高处坠落2小时后送至医院。主诉胸背部疼痛，双下肢不能活动。
此时首先应做以下哪项检查（）
A.B超
B.MRI检查
C.X线平片
D.脑脊液穿刺检查
E.CT检查
