单选题 If the expert advice is more positive, will the parents be able to______attitudes which have built up over decades in a few days?(2013年10月中国科学院考博试题)
【正确答案】 B
【答案解析】解析：A项“approve of”意为“赞成，赞同”；B项“shrug off”意为“耸肩表示蔑视，摆脱”；C项“show off”意为“炫耀，卖弄”；D项“pick up”意为“捡起，得到，学会”，本句是说父母摆脱数十年积累的态度，因此选择B项。