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【单选题】
蒸发器鼓风机电机为一直流电机,其转速改变是通过 ( ) 。A.
调整电机电路的电阻值
B.
改变电机的匝数
C.
改变电源电压值
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举一反三
【单选题】Given the combination of PPP with quantity theory equations, which of the following statements is true?
A.
As long as the money supplies in the two countries are the same, the exchange rate will be equal to one
B.
Everything else remaining unchanged, the price of the foreign currency (e) would be reduced by an increase in the relative size of the money supply in the domestic economy.
C.
Everything else remaining unchanged, the price of the foreign currency (e) would be raised by an increase in the relative size of foreign production.
D.
The exchange rate would remain unaffected as long as the relative growth in productivity between the two nations remains constant, even if the relative money supply varies between the two economies.
【单选题】The viral nucleocapsid is the combination of
A.
genome and capsid
B.
capsid and spikes
C.
envelope and capsid
D.
capsomere and genome
【单选题】Given the combination of PPP with quantity theory equations, which of the following statements is true?
A.
Everything else remaining unchanged, the price of the foreign currency (e) would be reduced by an increase in the relative size of the money supply in the domestic economy.
B.
Everything else remaining unchanged, the price of the foreign currency (e) would be raised by an increase in the relative size of foreign production.
C.
As long as the money supplies in the two countries are the same, the exchange rate will be equal to one
D.
The exchange rate would remain unaffected as long as the relative growth in productivity between the two nations remains constant, even if the relative money supply varies between the two economies.
【单选题】对位于7度抗震设防区、II类建筑场地、110m高、房屋平面及其结构布置均匀、对称、规则,且房屋质量和其结构的侧向刚度沿高度分布较均匀的丙类钢筋混凝土框架一剪力墙办公室。在水平地震作用计算式,何项计算方法适合?
A.
可采用底部剪力法
B.
可采用不考虑扭转影响的振型分解反应谱法
C.
应采用考虑扭转耦联振动影响的振型分解反应谱法
D.
应采用考虑扭转耦联振动影响的振型分解反应谱法，并用弹性时程分析法进行多遇地震作用下的补充计算
【简答题】合架的作用及分类?
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