房地产开发投资的经济效果主要表现为投资利润，其经济效果的大小则用销售收入、成本利润率、投资收益率等指标来衡量。()
A.对
B.错
参考答案：B
—I remember I left my laptop in the study last night. Why ________ here?
—Oh, I thought you might need it so I brought it here for you.[ ]
A. does it come
B. has it come
C. had it come
D. will it come
患者男性，16岁，曾行双侧唇裂修复术，术后上唇过紧的畸形，该患者可行哪种手术（）
A.Abbe瓣转移修复术
B.Tennison修复术
C.Millard修复术
D.提肌重建术
E.岛状瓣手术
