【单选题】Are you from New York?
【单选题】UN、IN、ηN、cosφN分别是三相异步电动机额定线电压,线电流、效率和功率因数,则三相异步电动机额定功率PN为( )。
A.
√3 U N I N η N cos φ N
【单选题】Which of the following statements is NOT a way of presenting new vocabulary?
C.
Writing a passage by using new words.
【简答题】(airframes )______________ for 20 new planes ______________.
【单选题】When will the new airport __________?
【单选题】—Is the mobile phone new or old? —________. I bought it only two days ago.
【单选题】A new man was appointed to ___________ the cr.
【判断题】变频器的输出频率是可变的,但输出电压是不变的
【多选题】男,52岁。体查:端坐呼吸,双下肺细湿啰音,心界向左下扩大,心率108次/分,律齐,心音低,胸骨左缘第三、四肋间可闻及舒张期叹气样杂音。此患者可能扪到的脉搏有:
【多选题】男性,60岁。因"突发呼吸困难2小时"入院。患者于入院前2小时,无明显诱因出现呼吸困难,症状进行性加重;无明显咳嗽、咳痰、咯血,无发热、胸痛等不适。患者既往有支气管哮喘史,不规则用药。入院查体:急性病容,大汗淋漓,烦躁,不能对答,不能平卧,呼吸35/分钟,双肺叩诊呈过清音,双肺呼吸音低,未闻及明显干湿性啰音。心率120/分钟,律齐,未及杂音,SpO 2 85%,血压150/85mmHg。腹部检查(...
C.
pH<7.35,PaCO 2>45mmHg,PaO 2 <60mmHg,SaO 2 <90%