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【单选题】
The passage’s description of the issue raised by unconditional guarantees for health care or legal services most clearly implies that which of the following is true?A.
The legal and medical professions have standards of practice that would be violated by attempts to fulfill such unconditional guarantees.
B.
The result of a lawsuit of medical procedure cannot necessarily be determined in advance by the professionals handling a client’s case.
C.
The dignity of the legal and medical professions is undermined by any attempts at marketing of professional services, including unconditional guarantees.
D.
Clients whose lawsuits or medical procedures have unsatisfactory outcomes cannot be adequately compensated by financial settlements alone.
E.
Predicting the monetary cost of legal or health care services is more difficult than predicting the monetary cost of other types of professional ervices.
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【单选题】对于电子节气门系统，当（）时，发动机ECU可以根据加速踏板位置传感器和进气歧管绝对压力传感器的信号判断节气门开度是否与发动机转速相对应，一旦检测到两者不对应，就降低发动机转速（称为降低模式），并使组合仪表板上的故障指示灯点亮。
A.
电动机断路或短路而不运转
B.
电动机被短路而连续转动
C.
不能按驾驶人的意图控制发动机
【简答题】从传力合理、传动效率来看,压力角越______越好。