The nurse is performing wound care. Which
题型：单项选择题
问题：
The nurse is performing wound care. Which of the following practices violates surgical asepsis
A. Holding sterile objects above the waist.
B. Considering a 1" (2.5 cm) edge around the sterile field as being contaminated.
C. Pouring solution onto a sterile field cloth.
D. Opening the outermost flap of a sterile package away from the body.
的收敛性是：（）