题型:判断题 Which of the following sentences is NOT right?[ ]A. There is no doubt that you will succeed. B. We have no doubt that you will succeed.C. We don't doubt that you will succeed. D. We don't doubt whether you will succeed 查看答案
题型:判断题 设关系模式R(A,B,C),传递依赖指的是 (52) ;下列结论错误的是 (53) 。A.若A→B,B→C,则A→C B.若A→B,A→C,则A→BC C.若A→C,则AB→C D.若A→BC,则A→B,A→C 查看答案
题型:判断题 关于术后病人的体位,下列哪项是错误的A.颅脑手术后,如无休克或昏迷,取15度—30度高脚低斜坡卧位B.颈胸手术后,取高半坐卧位C.腹部手术后,取低半坐卧位D.脊柱或臀部手术后,取俯卧或仰卧位E.休克病人,应取头低胸高卧位 查看答案