The physician prescribes a monoamine oxidase (MAO) inhibitor for a client. Which of the following nursing diagnostic categories would be most appropriate to focus on during client teaching ？（）

A．Risk for injury.

B．Disturbed thought processes.

C．Deficient fluid volume.

D．Disturbed sleep pattern.

常温下H₂S溶于水对设备腐蚀主要生成（）。

A.FeSO₃

B.FeSO₄

C.FeS

D.Fe₂（SO₃）₃