单项选择题
A.1010B.1011C.1012D.1013
A.300HzB.500HzC.800HzD.1000Hz
A.脑水肿B.肺水肿C.屈肢症D.红细胞增多症
A.热射病B.日射病C.热痉挛D.热衰竭
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