[名词解释] GBS感染

完全胃肠外营养输入人体的途径有() ["A．周围静脉","B．深静脉","C．中心静脉","D．锁骨下动脉","E．颈内静脉"] 换血疗法(exchangetransfusion) 关于眼眶肿瘤，最常见的是下列哪项() ["A．泪腺混合瘤","B．脑膜瘤","C．视神经胶质瘤","D．血管瘤","E．神经鞘膜瘤"] 产伤性颅内出血 眼眶异物定位时，金属标记不应放置在角膜的哪个方位上() ["A．3点钟","B．6点钟","C．9点钟","D．10点钟","E．12点钟"] GBS感染