皮内试验出现假阳性，可能是由于（） ["抗原变质或污染","抗原注入太深","抗原剂量小","抗原注入太浅","抗组胺药影响"]
下列哪项指标通常被作为心肌损伤确诊标志物（） ["CK","CK-MB","LD1","cTn","AST"]
鼻腔的易出血区是（） ["鼻甲","中鼻道","鼻中隔前下方","鼻顶","鼻阈"]
属于鼻腔的部分是（） ["鼻根","鼻梁","鼻前庭","鼻翼","鼻底"]
（）适用于砌体结构建筑，如住宅、教学楼、办公楼等多层建筑。 ["条形基础","独立基础","箱形基础","桩基础"]
简要叙述物流系统规划设计原则？
