当我们需要用到多个文件时，通常可以通过（）来指定。
A、文件名
B、通配符
C、文件夹
D、磁盘盘符
参考答案：B
第二次世界大战后，世界并未摆脱战争的阴影，特别是中东地区，政局更是动荡不安，阿拉伯民族和以色列为了争夺巴基斯坦主权问题，从1948年---1982年曾经几次将战火在此地区点燃？（ ）
A．4次
B．5次
C．6次
D．7次
A 4-year-old girl is admitted to the hospital to rule out leukemia. Which of the following would be the best room assignment ？（）
A．With a 4-year-old girl who has rheumatoid arthritis.
B．With a 5-year-old boy who is having a tonsillectomy.
C．With a 4-year-old girl who has leukemia.
D．Alone in a private room.
