They said good-bye to each other, one to go home, the other to go to the bookstore. ()
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People associated apples and nuts with Halloween because they were symbols of the harvest in Roman times. ()
根据增值税计税基数不同,可分为:()、()、()。
在成员较少的社会中,通过()与()的合作方式,有可能使公共物品或服务的供给量达到最佳水平。