单选题 That she seemed to prefer dabbling to concentrated effort is undeniable; nevertheless, the impressive quality of her finished paintings suggests that her actual relationship to her art was anything but______.
【正确答案】 A
【答案解析】解析：superficial“表面的，肤浅的”；passionate“热情的，热烈的”；disengaged“空闲的，不自由的，已脱离的”；lighthearted“快乐的，心情愉快的”。句子中prefer…to…更喜欢(后者)；anything but“绝不，绝非”。根据句意，本题答案为A。