Which is a legitimate bandwidth matched pair?（） [" DS-1; E1"," DS-1; STM-1"," OC-3; STM-1"," STS-1; STM-1"," OC-192; STM-192"]
承包人应该明确建设单位和（）的关系，明确监理单位是工程质量、进度、造价、安全的管理者和责任者，需要报告的各种事宜应及时向监卅单位报告，监理单位再根据事情的轻重缓急向建设单位报告，试图越过监理单位直接川建设单位联系沟通，只会造成不必要的矛盾，不利于承包人工作的开展。 ["监理单位","设计单位","施工单位","中介机构"]
In the OSNR model for EDFA amplifiers， SNR OUT = 1/（1/SNR IN + FhvB/P IN ）， what does SNR IN represent？（） [" the signal to noise of the current optical amplifier"," the signal to noise of the previous amplifier or source"," the signal to noise introduced by the optical multiplexer"," the accumulated noise to signal ratio of the optical channel"]
女性，36岁，因记忆力减退、反应迟钝、畏寒、腹胀、便秘、乏力等1月余来门诊就诊。检查：体温35℃，脉搏62/min，粘液性水肿。血TSH升高，FT4低。该患者可能的诊断是（） ["呆小症","幼年型甲减","甲状腺功能亢进症","痴呆","甲状腺功能减退症"]
CPU
任何按绝对值比较原理工作的阻抗继电器，都具有两个输入量，构成比较量，其中之一为（），另一个为（）。
