单选题 The latest research seems to______that emotional maturity and self-knowledge is the key elements for success.
【正确答案】 A
【答案解析】解析：动词词义辨析。由句子结构可知，空缺处的词可接that引导的从句。选项B、C、D都不能接从句，只有选项A可接从句且符合句意。故答案为A。