当客户抱怨存在鼓式制动系统制动异响或抖动时,应进行哪种操作或测试?()
A.检查并测量制动鼓
B.重新加工制动鼓摩擦面
C.更换制动鼓
D.更换制动管路
参考答案:A
病历摘要:患者男性,23岁,因发热1周,咳嗽、咯血丝痰2天入院。患者2周前到外地出差,1周前返回后即出现发热,体温最高达39.8℃,呈持续性,午后尤甚,伴全身疼痛,头痛,无咳嗽、咳痰、乏力、盗汗等症状。到当地医院就诊,查体发现双侧扁桃体肿大,化验血常规示:WBC12.5×109/L,N79.9%,予头孢呋辛1.5,bid,iv,4天,患者体温无下降。2天前出现咳嗽、咳少量白色粘稠痰,并间有血丝痰,伴胸痛不适及腹泻,为稀水样便,无脓血黏液,无腹痛。既往体健,从事网络工程工作,未到过疫区或牧区。体查:T39.5℃,P88bpm,R24bpm,BP120/60mmHg。神清,急性病容,皮肤黏膜无黄染、出血点,浅表淋巴结无肿大。口唇无紫绀,咽充血,扁桃体不大。双肺呼吸音粗,双下肺可闻及少许中细湿性啰音。心率88bpm,律齐,无杂音。腹软,无压痛、反跳痛及腹肌紧张,肝脾肋下未触及。无杵状指(趾)。
提示:入院后继续予头孢曲松抗感染治疗3天,体温无下降,并感气短。复查胸片示上述病变进展。胸部CT示:示双肺中上部斑片状阴影,左下肺大片状阴影,双侧少量胸腔积液。动脉血气分析示:PaO280mmHg,PaCO240mmHg,血BUN15,Cr140,改用亚胺培能治疗5天,症状无改善。该患者目前疗效欠佳,应考虑哪些情况存在?()
A.病毒性肺炎
B.结缔组织疾病
C.社区获得性肺炎(非典型病原体感染)
D.MRSA或其他多耐药细菌感染
E.肺结核合并感染
F.血液系统疾病
Digital computer is controlled by internally stored programs and (66) of using common storage for all or part of a program and also for all or part of the data necessary for the execution of the programs; executing user-written or user-designated programs; performing user-designated manipulation of digitally represented discrete data, including. (67) operations and logic operations; and executing programs that (68) themselves during their execution.
Analog computer’s operations are analogous to the (69) of another system and that accepts, processes, and produces analog data.
(70) computer integrates analog computer components and digital computer components by interconnection of digital-to-analog converters and analog-to-digital converters.
(68)处填()。
A.modify
B.correct
C.revise
D.improve