局部电击伤的伤口进行早期清创处理，（）以防止腐烂、感染。
A、创面不宜露，不宜包扎
B、创面宜露，宜包扎
C、创面宜露，不宜包扎
参考答案：C
The lucky fans will be picked out________ rather than chosen beforehand to perform with the
singer during the party. [ ]
A. by accident
B. on earth
C. come across
D. come on
直接特异杀伤靶细胞的是
A．巨噬细胞
B．Tc细胞
C．中性粒细胞
D．K细胞
E．NK细胞
