题目类型：
单选题
题目内容
To a novice, problems and trials seem to come ______ while to an expert any challenge presents an opportunity.
正确答案
C
题目解析
句意：对一个新手来说问题和考验似乎接踵而来，但对一个行家来说任何挑战都意味着一次机遇。successfully成功地;seriously严重地;successively相继地;sufficiently足够地。