春秋时期各诸侯国不断进行战争以取得霸主的地位，其中第一个称霸的是[ ] A．晋文

They __________ two free tickets to Canada, otherwise they’d never have been able to afford to go.

A．had got

B．got

C．have got

D．get

若x，y只能取0，1，2，3，4，5，6，7，8，9中的数，且3x-2y=1，则代数式10x+y可以取到______个不同的值，其值为______．

早期食管癌是指（）

A.无吞咽困难症状

B.病变局限于黏膜内

C.病变局限于肌层内

D.病变小于3cm

E.无淋巴结转移

某甲在交通肇事后见前后无人，便驾车逃逸，致被害人因伤重未及时救治而死亡。某甲的行为应当定为( )。

A．交通肇事罪

B．故意杀人罪

C．交通肇事罪与故意杀人罪

D．故意伤害罪

71.Vacations were once the prerogative of the privileged few, even as late as the 19th century. Now they are considered the right of all, except for such unfotrunate masses as, for example, the bulk of puplation in certain countries, for whom life, save for sleep and brief periods of rest, is uniterrupted toil.
Vacations are more necessary now than before because today the average life is less well-rounded and has become increasingly compartmentalized. 72. I suppose the idea of vacations, as we conceive it, must be incomprehensible to primitive peoples. Rest of some kind has of course always been a part of the rhythm of human life, but earlier ages did not find it necessary to organize it in the way that modern man has done. Holidays and feast days were sufficient.
With modern man’s increasing tensions, with the stultifying quality of so much of his work, this break in the year’s routine became steadily more necessary. 73. Vacations became mandatory for the purpose of renewal and repair. And so it came about that in the United States, the most self-indulgent of nations, the most tense and compartmentalized, vacations have come to take a predominant place in domestic conversation.