Which nursing action is most effective in defusing a client’s impending violent behavior（）

A. Helping the client identify and express feelings of anxiety and anger.

B. Involving the client in a quiet activity to divert attention.

C. Leaving the client alone until he can talk about his feelings.

D. Placing the client in seclusion.

下列哪项不是小儿器质性腹痛的临床表现（）

A.持续6小时以上腹痛

B.惧怕震动及颠簸

C.腹部拒按

D.腹部无固定压痛及肌紧张

E.腹部有固定压痛及肌紧张