男士穿着正装衬衫与西装相配套时,可以不穿西装上衣而直接穿着长袖衬衫。
参考答案:错
— Tom is indeed a wise man.
— Oh ,yes. How often I have regretted his advice! [ ]
A. to take
B. taking
C. not to take
D. not taking
补体不具有的生物学作用是()
A.溶细胞作用
B.炎症介质作用
C.中和与溶解病毒作用
D.免疫复合物的清除作用
E.促进抗体生成作用