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【单选题】
过敏性休克首选药物为A.
去甲肾上腺素
B.
肾上腺素
C.
肾上腺素
D.
多巴胺
E.
麻黄碱
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A.
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B.
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C.
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A.
no darker than
B.
no more darker as
C.
not dark more than
D.
not darker as ~
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A.
when; that
B.
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