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【单选题】
一般用电设备满足( )。
A.
当端电压减小时,吸收的无功功率增加
B.
当电源的频率增加时,吸收的无功功率增加
C.
当端电压增加时,吸收的有功功率增加
D.
当端电压增加时,吸收的有功功率减小
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【单选题】These medical cotton balls are all ________ so as to avoid cross infection.
A.
durable
B.
recyclable
C.
disposable
D.
flexible
【简答题】结构承载能力极限状态和正常使用极限状态设计计算的原则是什么?
【单选题】People took shelter _____ the shower in the shop. [     ]
A.
to
B.
away
C.
from
D.
of
【单选题】After my brother got out of the shower, I took a quick shower and . [     ]
A.
put on
B.
wore
C.
got dressed
【简答题】金属热电阻简称热电阻,是利用金属电阻随温度升高而____这一特性来测量温度的传感器。目前应用较为广泛的热电阻材料是____和铜。
【简答题】2-6 结构承载能力极限状态和正常使用极限状态设计计算原则是什么?
【单选题】听力原文:What are these pants made of? (5)
A.
Cotton.
B.
They are not so nice.
C.
They are dear.
D.
They are beautiful.
【单选题】This is the way I _____________ a shower. [     ]
A.
wash
B.
take
【单选题】The TV play called Cotton Flower.s was so sad that it made me _ [     ]
A.
cried
B.
crying
C.
to cry
D.
cry
【简答题】结构承载能力极限状态和正常使用极限状态设计计算的原则是什么?
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