卡特尔人格理论把特质区分为（）

A.独特特质和根源特质

B.独特特质和共同特质

C.表面特质和根源特质

D.表面特质和共同特质

E.独特特质和表面特质

The nurse is caring for a client who recently underwent a tracheostomy. The first priority when caring for a client with a tracheostomy is（）

A. helping him communicate.

B. keeping his airway patent.

C. encouraging him to perform activities of daily living.

D. preventing him from developing an infection.