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【单选题】
具有简单、可靠、精度高并适于远距离传送温度信号等优点,检测船舶动力装置内高温气体或液体温度的元件是______。A.
热电偶
B.
铜热电阻
C.
铂热电阻
D.
热敏电阻
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【单选题】下列关于路由器的说法,不正确的是( )。
A.
路由器可用在局域网连入广域网,也可用局域网之间的互联
B.
路由器具有判断网络地址和选择路径功能
C.
路由器用于传输层以上各层的协议转换
D.
路由器在网络层对分组进行存储和转发
【单选题】21A: Red Sea, this is Pilot Station. What is your ETA at NO.1 entrance buoy?Over.B: Pilot Station this is Red Sea.my ETA is 1630 UTC.OverQ:What can you learn from the conversation?
A.
The vessel is expected to leave at 1630 UTC
B.
The vessel is expected to arrive at 1630 GMT
C.
The vessel is expected to leave at 1630 GMT
D.
The vessel is expected to arrive at 1630 UTC
【简答题】S1:MAYDAY, MAYDAY, MAYDAY. This is M.V. Euphoria. I am disabled and adrift. I need help. Over.S2:M.V. Euphoria, this is M.V. Blue Whale. Your MAYDAY received. What is your position? Over.S1:Blue Whale...
【简答题】用连词but, and, so, or填空。 1. What is your favorite color, green ________ orange? 2. Jeff is good at maths, ________ he is not good at Chinese. 3. It's 9 o'clock, ________ the little boy stops watching TV...
【单选题】It was______ that We decided to stay indoors.
A.
so hot a day
B.
so a hot day
C.
such hot a day
D.
such a hot weather
【简答题】分辨率是A/D转换芯片的主要性能指标,n为A/D转换器的分辨率是 。
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