【单选题】患者女,69岁,住院1月余,因外周血管均已破损,需长期静脉输液,行中心静脉穿刺,上肢首选的进针血管是
【单选题】为预防佝偻病的发生,维生素D的剂量为每日
【判断题】虚拟变量只能作为解释变量引入计量经济模型。
【单选题】马克思与1818年_月_日出生于德国__
【单选题】— Did you see Mr. Smith when you were in France? — No, when I _____ France, he had gone to China. [ ]
【单选题】为预防佝偻病的发生,维生素D的预防剂量一般为每日
【判断题】感觉阈限在营销中的应用非常广泛,比如,提价要控制在感觉阈限之内,降价要超出消费者的感觉阈限。
【单选题】20110113OSI七层模型中,提供面向用户连接服务的是 (13) 。
【单选题】—Did you see Mr Smith when you were in France? —No. When I _______ France, he _______ to China. [ ]
A.
had arrived in; had gone
【单选题】患者女,69岁,因外周血管破损,行锁骨下静脉穿刺输液,药液向心途中不可能经过的血管是