胸腹部手术切口拆线最好在()。
A.3~4天
B.6~7天
C.10~14天
D.视情况而定
E.分期拆线
参考答案:B
Your donation is greatly _____. [ ]
A. appreciate
B. appreciating
C. appreciated
D. being appreciated
简述微生物污染对粮食品质的影响。