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【单选题】
Because I Could Not Stop for Death Because I could not stop for Death— He kindly stopped for me— The carriage held but just Ourselves— And Immortality. We slowly drove—He knew no haste, And I had put away My labour, and my leisure too, For His Civility— We passed the School, where children played At Recess—in the Ring— We passed the fields of gazing grain— We passed the Setting Sun. We paused before a house that seemed A swelling of the ground— The roof was scarcely visible— The cornice but a mound. Since then—tis centuries; but each Feels shorter than the Day I first surmised the Horses’ Heads Were toward Eternity— The main idea of the poem is that
A.
death kidnaps its victims and drives away emotionlessly.
B.
death is dull; its chief torment is boredom.
C.
death is a gentle timeless journey, simply leaving life’s cares behind.
D.
death is an eternity
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参考答案:
举一反三
【单选题】大型商场中央空调系统的送、回风管穿过机房的隔墙和楼板处,均应按规定设置( )。
A.
防火阀
B.
排烟防火阀
C.
防回流措施
D.
防回流措施
【判断题】=220sin314tV滞后 =311sin(628t+55°)V 55°电角。
A.
正确
B.
错误
【单选题】大型商场中央空调系统的送、回风管穿过机房的隔墙和楼板处,均应按规定设置________ 。
A.
防火阀
B.
排烟防火阀
C.
防回流措施
D.
防火隔板
【简答题】I don’t feel ready to take on new (responsible).
【简答题】需求滞后、反应滞后、掌握滞后、模仿滞后四者之间关系如何?
【判断题】u1=220sin314tV滞后u2=311sin(628t+55°)V 55°电角。
A.
正确
B.
错误
【判断题】u1=220sin314tV滞后u2=311sin(628t+55°)V 55o电角。
A.
正确
B.
错误
【单选题】根据滞后的性质不同可以分为()和()
A.
传递滞后和时间滞后
B.
传递滞后和容量滞后
C.
容量滞后和时间滞后
D.
响应滞后和时间滞后
【单选题】下列关于网络层采用的服务描述,错误的是
A.
计算机和传统电话不同,有很强的差错处理能力,是网络层可以采用无连接服务的原因之一
B.
如果主机的进程之间需要可靠的通信,那么就由网络的主机中的运输层负责
C.
网络层必须提供服务质量的承诺
D.
网络层中每个分组独立选择路由进行转发
【单选题】设 , ,问哪个电流滞后,滞后多少度?
A.
i 1 滞后,滞后 20 0
B.
i 1 滞后,滞后 110 0
C.
i 2 滞后,滞后 20 0
D.
i 2 滞后,滞后 110 0
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