He said that only after he went abroad _______ what his motherland meant to him.

A．he realized

B．he had realized

C．had he realized

D．did he realize

危重伤员的搬运中错误的是（）

A.开放性血气胸者，包扎后取坐位或半坐位，坐椅式搬动为宜

B.腹部外伤取仰卧位，下肢屈曲，以减轻腹部压力，防止腹腔器官脱出，可用担架或木板搬运

C.昏迷伤员搬运时应取仰卧位，头侧向一边或侧卧位，防止呼吸道阻塞

D.休克伤员搬运时应取半卧位

E.四肢骨折，关节损伤应夹板固定好上、下两个关节后才可搬运，以免途中造成继发性损伤