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【简答题】
一台冰箱,其制冷系数为同种情况下卡诺致冷机制冷系数的50%,它从7°C低温热源中提取7000J的热量放到27°C的高温热源中,需要压缩机做功_____J
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举一反三
【多选题】What are the 5W-H questions in the narration?
A.
What
B.
Who
C.
When
D.
Where
E.
Why
F.
Whether
G.
How
【单选题】The event features a large indoor display of local ______ and agricultural products.
A.
crafts
B.
handcraft
C.
art
D.
skill
【单选题】According to the passage, what are the supposed carriers of the type of flu virus called H5N1?
A.
Birds that people bought in a live-poultry market.
B.
Domestic animals, such as horses and cows.
C.
Domestic fowls, such as chickens.
D.
Fish that people kept as their food.
【单选题】We went to the Shaolin Temple last weekend, _____, not surprisingly, was crowded with visitors from all over the world. [ ]
A.
where
B.
which
C.
that
D.
when
【单选题】The event features a large indoor dispaly of local _____ and agricultural products.
A.
crafts
B.
zones
C.
visas
D.
excursions
【单选题】According to the passage, what are the supposed carriers of the type of flu virus called H5NI?
A.
Birds that people bought in a live-poultry market.
B.
Domestic animals, such as horses and cows.
C.
Domestic fowls, such as chickens.
D.
Fish that people kept as their foo
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