Nearly all the people        believe confidence is the key to success.

A．interviewing

B．having interviewed

C．to interview

D．interviewed

醛固酮分泌增多可使下面哪些血清电解质发生改变（）。

A.高Na⁺

B.高K⁺

C.低K⁺

D.低Na⁺

E.低Cl^-