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【单选题】
主要与交感缩血管神经末梢释放的相结合的受体是A.
α受体
B.
β1受体
C.
β2受体
D.
M受体
E.
N受体
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【单选题】How did Heracles die?
A.
His wife murdered him for cheating on her.
B.
He was killed by poison from Centaur Nessus.
C.
He died when completing one of his 12 labors.
D.
He was killed by Eurystheus out of fear.
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