95. You are an expert in IT industry. Have you any       to make on the latest developments?

A．commands

B．words

C．remarks

D．Comments

下列各组离子，能在溶液中大量共存的是[ ]

A.Ca²⁺、CO₃^2-、Cl^-

B.Na⁺、H⁺、OH^-

C.Ba²⁺、SO₄^2-、Cl^-

D. K⁺、Na⁺、NO₃^-