【判断题】理论力学研究问题的方法包括理论方法、实验方法和数模拟。
【判断题】理论力学研究问题的方法包括理论方法、实验方法和数模拟。
【单选题】Which method should be used to warm up the pump turbines prior to discharge ________.
A.
Lock the turbine rotor and slowly bleed in steam until operating temperature is reached
B.
Run the pump at high speed with the discharge valves closed
C.
Run the turbine at slow speed with the pump disconnected
D.
Shut the discharge valve and run the pump at slow speed
【判断题】水泥混凝土路面抗滑性能常用摩擦系数来表示
【单选题】36岁男性患者呕血呈鲜红色,量多呈喷射状,查体,腹膨隆,有腹壁静脉曲张,脾大,腹水,首先考虑;
【单选题】男性,52岁,2年前急性广泛前壁心肌梗死,出院时窦性心律,BP120/80mmHg,频发室性早搏,ECG及UCG均提示室壁瘤形成,EF4.5%。出院后常规冠心病Ⅱ级预防治疗,定期门诊取药。今晨6:30起床后自觉心前区压榨性闷痛,含服硝酸甘油后稍缓解,早上8点进早餐时突然意识丧失眼球上翻、抽搐、相继呼吸停止,急呼救护车,30min后医生到场,检查:心跳、呼吸已停止,双瞳孔散大,当场抢救半小时无效,宣...
B.
基础冠心病,冠脉栓塞或突然痉挛或微循环栓塞致心肌缺血,诱发心律失常
【单选题】p64经验学派建立的管理方法所涉及的管理问题不包括
C.
管理者的任务是了解本机构的特殊目的和使命,使工作富有活力并使职工有成就,处理本机构对社会的影响、相对社会的责任
【单选题】All the essential services on which we depend are______.
A.
run by the government or our local authorities
B.
in constant need of financial support
C.
unable to meet the needs of the population
D.
financed wholly by rates and taxes