题型:单项选择题 A1/A2型题 关于肠梗阻的临床表现特点,错误的是()A.腹痛一般为阵发性剧烈绞痛,若发生绞窄则呈持续性伴阵发性加重B.肛门可排便、排气,为不完全性梗阻C.高位小肠梗阻呕吐较频繁,低位小肠梗阻呕吐间隔时间不一D.高位小肠梗阻腹胀不明显,低位全腹膨胀,常有肠型E.肠鸣音亢进,有气过水声、金属音 查看答案
题型:单项选择题 Every ship constructed on or after()shall comply with all the applicable requirements of this chapter.A.1 February 1995B.1 February 1992C.1 July 1997D.1 February 1999 查看答案
题型:单项选择题 将当前表文件内容复制到工资.DBF中的命令是 ______。A.COPY TO工资B.COPY FILE TO工资C.COPY STRU TO工资D.COPY STRU EXTE TO工资 查看答案