B组之间输血率、术后感染率均有显著性差异(PThe transfusional rate and polstoperative infection arte had significant difference between A and B group. (PB组之间输血率、术后感染率均有显著性差异 ( P...
He argues strongly for retention of NATO as a guarantee of peace.他强烈要求保留北大西洋公约组织以维护和平。NATO defense ministers wrap up their meeting in Brussels today.北约各国国防部长今天圆满结束了在布鲁塞尔的会议。The plane was shot down in error by a NATO miss...