患者,男性,58岁,患结肠癌,拟行左结肠癌根治术,术前需几日开始服用肠道消炎药()
A.1日
B.2日
C.3日
D.4日
E.5日
参考答案:C
the responsibilities of the family, I worked hard to earn a living.
A.Being burdened with
B.Burdened with
C.Burdening with
D.To burden with
单断路器的双母线接线方式有何优点?