Cement was [seldom]used in building during the Middle Ages.

[试题]D．uring the Middle Ages the economic ideas of the Roman Catholic church were expressed in the law of the church, which condemned the taking of interest for money loaned and regarded commerce as inferior to agriculture.

[单选题]_____with antique furniture, the castle brought us back in time to the Midd

[单选题]Two substitutes were used during the basketball games.A.playersB.centersC.r

[单选题]Pipes made of this plastic are now widely used in building as they are ligh

[单选题] Among the annoying challenges facing the middle class is one that will p

[单选题] Among the annoying challenges facing the middle class is one that will p

[单选题] Among the annoying challenges facing the middle class is one that will p

[单选题] Among the annoying challenges facing the middle class is one that will p

[单选题] Among the annoying challenges facing the middle class is one that will p

[单选题]English classroom activities for elementary and middle schools can be divid