由绵阳出发到成都的某一次列车,运行途中须停靠的车站依次是:绵阳→罗江→黄许→德阳→广汉→清白江→新都→成都.那么要为这次列车制作的车票一共有( ) A.7种 B.8种 C.56种 D.28种 答案:C解析:解:共制作的车票数=(7+6+5+4+3+2+1)×2=56(种).故选C 16.-Who lives together with this old woman?-__________.She lives alone.Li Jing and I come to see her every Saturday.( )A.NobodyB.SomebodyC.AnybodyD.Everybody