客票是（）和（）的简称。
参考答案：国内客票；行李票
已知扇形的圆心角为120°，半径为2cm，则扇形的弧长是______cm，扇形的面积是______cm2．
—Can you tell me who used the _______ time to do the _______ work?
—OK, Mary did. [ ]
A. fewest; most
B. least ; most
C. less ; most
D. fewest ; more
