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I’ve just come back from my vacation. It’s the first (66)____ that my family have taken in, so we were really excited. My aunt lives in Guilin, so we stayed with (67)____ for two days and then we left for Yangshuo and (68)____(spend) a week there. Yangshuo is such an attractive little town and there's so much to do! First we rented(租) bicycles and (69)____(ride) into the countryside to a place called Moon Hill. When we got there, we hiked all the way to the top and the views were beautiful. The landscape around Yangshuo is amazing. The mountains stand in different shapes and (70)____[ri:tʃ] for the sky. That evening we went out on a boat on the Li River to watch the fishermen (71)____ birds to catch fish. Those birds are so well trained! The most exciting thing we did in the next (72)____[fju:] days was to go caving. There was a river in the cave so we could hear the sound of running water, (73)____ we couldn't always see it. Deep inside the cave it was so dark (74)____ I couldn't even see my hand in front of my face! To tell the truth, I felt quite (75)____[rɪˈlækst] when I was in the open air again!
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举一反三
【单选题】下面哪项不是发电机准期并列的特点()
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发电机在并列前巳经投入励磁
B.
发电机并列前电压、相位、频率已与系统接近相同
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并列过程短,操作简单
D.
并列时对系统和发电机冲击电流小
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正确
B.
错误
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4037913
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4037914
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4037912
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4036913
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硫酸软骨素
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麦芽糖
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乳糖
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纤维素
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蔗糖
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A.
梁截面或楼板高度
B.
柱截面高度
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基础高度
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梁跨度
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排汗量、呼吸频率、心率
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肺活量、血压、皮肤空间阈
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都不完整
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A.
正确
B.
错误
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每千次展示的费用
B.
每次点击的费用
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注册成功支付佣金
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每次行动的费用
【单选题】图集11G101-1中所注的h b 是指()
A.
梁截面高度
B.
柱截面高度
C.
基础高度
D.
梁跨度
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A.
发电机在并列前巳经投入励磁
B.
发电机并列前电压、相位、频率巳与系统接近相同
C.
并列过程短,操作简单
D.
并列时对系统和发电机冲击电流小
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