胃黏膜表面的黏液层中含量多的是A．Na+ B．K+ C．Cl- D．HCO3ˉ_爱下问搜题

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问题单项选择题

胃黏膜表面的黏液层中含量多的是

A．Na⁺

B．K⁺

C．Cl^-

D．HCO₃ˉ

答案

参考答案：D

选择题

I don't know the girl in red. Could you tell me _____? [ ]

A. what is her name

B. how old is she

C. who is she

D. where she comes from

填空题

盒装白巧克力