问题
单项选择题
一座由三台主变压器变电所的所用电负荷包括：直流充电装置40kW、冷却装置40kW/台、保护室30kW、生活水泵30kW、配置装置加热负荷20kW、照明负荷10kW。该变电所的所用变压器最小需选（）。
A．160kVA
B．200kVA
C．250kVA
D．315kVA
答案
参考答案：A
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一座由三台主变压器变电所的所用电负荷包括：直流充电装置40kW、冷却装置40kW/台、保护室30kW、生活水泵30kW、配置装置加热负荷20kW、照明负荷10kW。该变电所的所用变压器最小需选（）。
A．160kVA
B．200kVA
C．250kVA
D．315kVA
参考答案：A
The elderly Chinese man in the small booth (售票口) behind the thick glass shook his head. I didn't need to know a word of Chinese to understand there were beds available for the Thursday night train from Beijing to Shanghai. I had a Friday morning with my college friend. I must be on that train. Desperate times desperate measures. So I squatted(蹲下). I assumed that this was the international for “Are there any hard seats available?” , there were. It was seat 109. Very quickly, I found it. The Chinese man sitting in it, however, seemed to beg to differ. I panicked. I am a man who usually avoids conflicts(冲突) and so I my seat, as if still looking, to buy myself more time. I had two options: The first is to be a and ask for what was rightfully mine. The second was to 23 and spend the next 13 hours staying in a corner. Well, nine out of ten times I choose the second option. But at that moment, every square inch of had already been claimed. There wasn’t a corner in which to cower(退缩). So, I mustered up(聚集) some and presented the man with my proof of ownership. He looked at my ticket and . About midnight my became heavy and I was ready for the lights to dim and my date Ms ZZZZ to start. But the room bright and hot. I tried to persevere and was even able to work into a sleeping position. It is here I must admit: I have a bladder (膀胱). The man next to me drank a Coca-Cola, a bag of milk and a bottle of water and the course of 13 hours he did not move once. I drank but finally, I made my way to the bathroom at 3:02 am. After waiting in a thick cloud of cigarette smoke, I finally used the bathroom. The philosophy(原则) of my sleeping was right: if you get a seat on a train, don’t move.
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