实验测得人体内一些液体pH如下,其中酸性最强的是[ ]
A.唾液6.6~7.1
B.胃液0.9~1.5
C.汗液6.6~7.6
D.血浆7.35~7.45
答案:B
_______ is the ninth month of a year.[ ]
A. September
B. August
C. October
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