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【单选题】
对比下列单词,选择词根 domin, domit的意思: dominate dominant predominant domineering indomitableA.
say, assert
B.
master
C.
lead
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【简答题】转向桥由 、 、 和 等主要部分组成。
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【简答题】“锅”：是指承受内部或外部作用压力、构成[填空(1)]的各种部件，即容纳[填空(2)]和[填空(3)]的受压部件。它的基本构造包括[填空(4)]（又称[填空(5)]），管束（[填空(6)]、[填空(7)]、[填空(8)]和[填空(9)]）等组成的一个封闭汽水系统。
【简答题】Renewable energy technologies have made great progress， which will help to fight against climate change． 查看材料
【单选题】What does this article suggest?
A.
Oil companies are against solar energy.
B.
Many people are afraid of solar energy.
C.
Solar energy might ease the energy problem.
D.
Shortage of natural gas.
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【单选题】Energy experts against price caps believe that ______.
A.
the present situation in California will continue unless there is price control
B.
the current crisis is partly attributed to previous command and control policy
C.
price caps can temporarily solve energy problems an individual state meets with
D.
they do understand what is going on in California and will take proper measures
【单选题】从能量转换的角度看，火电厂汽水系统的主要作用是（）
A.
将蒸汽的热能转换为电能
B.
利用燃料燃烧释放的化学能产生蒸汽，然后将蒸汽的热能转换为机械能
C.
将给水经锅炉加热变成蒸汽，蒸汽做完功后再凝结成水，然后经加压、除氧、加热等再送回锅炉
D.
完成水—汽—水封闭循环
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