—I am very glad that our class_____ in taking the first place in the singing competition.

—Congratulations!

A．realized

B．performed

C．succeeded

D．beat

汉初“驰山泽之禁”，吴王刘濞得以“专山泽之饶”，势力日增。后汉武帝行盐、铁专卖，断绝了豪强大贾对盐、铁的专擅，大大地削弱了地方势力的经济实力。材料认实行专卖制度[ ]

A．有利于巩固中央集权

B．干扰了正常的商业秩序

C．是一种与民争利的行为

D．是政治专制主义在经济领域的表现