第9题: [单项选择]She remains confident and ______ untroubled by our present problems. A. indefinitely B. infinitely C. optimistically D. seemingly 参考答案:C 答案解析:副词辨析题。选项[C]optimistically“乐观地,乐天地”。选项[A]indefinitely“模糊地,不确定地”;选项[B]infinitely“无穷地,无限的,极大地”;选项[D]see