毒蛇咬伤后对创口扩创排毒,方法错误的是
A.伤口作纵形切开
B.伤口作"+"字切开
C.切开前,宜消毒麻醉
D.若伤口出血,应及时切开
E.切开后,宜反复用水清洗
参考答案:D
_______ is good _______ your health. [ ]
A. Do eye exercise, for
B. Doing exercise, for
C. Do eye exercises, to
D. Doing eye exercises, to
鲢鱼、鳙鱼的形态特征的区别有哪些?