FoxPro启动后,在命令窗口中,执行命令文件MAIN.PRG使用的命令是( )。
A.!MAIN
B.DO MAIN
C.MAIN
D.RUN MAIN,
参考答案:B
患者男。咯血约200ml后突然中断,呼吸极度困难,喉部有痰鸣音,表情恐怖,两手乱抓,护士首先应该()
A.立即通知医生
B.给予吸氧
C.立即气管插管
D.用呼吸兴奋剂
E.清除呼吸道积血
She is the only one of the girls in our class______ been to the United States.
A.who have
B.that had
C.whom has
D.that has