A client is in the first postoperative day after a total laryngectomy and radical neck dissection. Which of the following is a priority goal

A. Communicate by use of esophageal speech.
B. Improve body image and self-esteem.
C. Attain optimal levels of nutrition.
D. Maintain a patent airway.

关税与贸易总协定对倾销与反倾销的规定是（）。

A．倾销进口货和所称损害之间存在因果关系 

B．关贸总协定规定范围内的损害 

C．对倾销商品出口国可同时征收反倾销和反补贴税