单选题 Those who fear the influence of television deliberately _____ its persuasive power, hoping that they might keep knowledge of its potential to effect social change from being widely disseminated.无
【正确答案】 A
【答案解析】句意： 害怕电视影响的人故意淡化它的说服力， 希望能够阻止潜在改变社会的信息被广泛传播。 underplay对……轻描淡写。 promote促进。 excuse原谅。 laud赞美。 因此， 本题的正确答案为A。