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【单选题】
一根导体电阻为R.若拉长为原来的2倍,则其阻值为()A.
R/2
B.
2R
C.
4R
D.
8R
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【简答题】A teddy bear from Cumbria is launching into space to raise cash for charity(慈善). Terence, an experienced traveller who has been to Iraq, will be the guest of honour on aviation(航行) legend Burt Rutan’s...
【单选题】The experience of foreign countries is worth learning from and taking for reference.
A.
learning and reference.
B.
our learning and our reference
C.
our learning from and taking for reference
D.
our learning and make reference to
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【单选题】We can learn from the text that ______.
A.
Gorillas in the Mist was based on Fossey's experiences
B.
Lowland gorillas live longer than mountain gorillas
C.
King Kong showed us that a gorilla is admirable
D.
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