不属于优质蛋白的食物是() ["A．玉米","B．牛肉","C．豆类","D．牛奶","E．大米"] 影响营养与饮食的因素有() ["A．食欲","B．就餐环境","C．生活方式","D．疾病与外伤","E．情绪状态"] 结核性与癌性胸腔积液鉴别要点是() ["A．胸腔积液颜色","B．Riva1ta试验","C．胸腔积液蛋白质含量","D．胸腔积液LDH含量","E．胸腔积液细胞学与细菌学检查"] 统计患者的出液量时应包括() ["A．尿量","B．粪便中的水分","C．汗液","D．呕吐量","E．出血量"] 胸腔积液当出现阳性体征时，积液量至少有() ["A．150ml","B．300ml","C．500ml","D．600ml","E．800ml"] 充血性心力衰竭引起胸腔积液的主要机制是()