问答题 Freeman and slave, A(patrician and plebeian), lord and serf, guild-master and journeyman, in a word, B(oppressor and oppressing), stood in constant opposition to one another, carried C(on an uninterrupted), now hidden, now open fight, a fight that each time ended, either in a revolutionary reconstitution of society at large, D(or in the common ruin of) the contending classes.

问答题 After 1945 both A(America scholarship) and a resurgence of Marxist thought increasingly penetrated European sociology, B( which expanded )considerably. To a growing extent in both the United States and Western Europe, C( the three dominating figures) of Marx, Durkheim, and Weber were recognized as the preeminent classical thinkers of the sociological tradition. D(Their work continued) to influence contemporary sociologists.

问答题 Restrained from the slave-trade—the favorite traffic of the chiefs—A(opposed in) their marauding propensity, and threatened by the desertion of their slaves and women, who begin to understand that by flight into the towns of the Republic they can free themselves from the domestic institutions of slavery and polygamy, B( it is not probable that) heathen princes and chiefs would be favorable to the government C(which they imagine is operating) detrimentally in these respects toD( its interest).