眼科流行病学的描述性研究有（） ["A．病例报道","B．观察性研究","C．描述性横断面研究","D．社区普查","E．疾病发生的流行病学描述"]
以下与肤色有关的因素是() ["A．种族","B．年龄","C．性别","D．部位"]
根据皮肤的结构特点，可将其大致分为() ["A．有毛的薄皮肤","B．无毛的薄皮肤","C．有毛的厚皮肤","D．无毛的厚皮肤"]
眼内注射的优点包括() ["A．将有效浓度药物释送到眼内作用部位","B．适应各种眼病","C．疗效较好","D．是眼科给药的最佳途径","E．所需药物的剂量和浓度均很小"]
皮肤内含有() ["A．血管","B．肌","C．骨骼","D．淋巴管"]
SARS
