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搜题/搜资源
【单选题】【消耗次数:1】
Before I left on the trip,I [填空]hard and got very fit.
①
had trained
②
trained
③
train
④
training
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计算工字形梁的抗弯强度,用公式Mx/yxWnx≤f,取yx=1.05梁的翼缘外伸肢宽厚比不小于()。
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②
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计算工字形梁的抗弯强度,用公式<imgwidth="45"height="45"id="对象3"src="http://wljy.whut.edu.cn//uploadfiles/word/gcjg002.files/image003.png">≤f,取γx=1.05,梁的翼缘外伸肢宽厚比不小于()。
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混凝土的立方强度≥30N/mm2
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①
F=A(P/A,i,5)(F/P,i,8)
②
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③
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④
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已知现金流量图如下,计算F的正确表达式是()。(折现率为i)<imgwidth="277"height="66"src="http://wljy.whut.edu.cn//uploadfiles/word/gcjjx001.files/image001.png">
①
F=A(P/A,i,5)(F/P,i,8)
②
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③
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④
F=A(F/A,i,6)(F/P,i,2)
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C三个独立投资方案的寿命期相同。各方案的投资额和净现值见下表。若资金受到限制,只能筹措到6000万元资金,采用净现值率排序法,则最佳的组合方案是()。<imgwidth="554"height="90"src="http://wljy.whut.edu.cn//uploadfiles/word/gcjjx001.files/image002.png">
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A+B
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