单选题 The library already subscribes to at least one of the materials related periodicals published by them.
  • A. period
  • B. science
  • C. magazines
  • D. novels


【正确答案】 C
【答案解析】periodical n.“期刊、杂志”；period“时期”；science“科学”；magazine“杂志”；novel“小说”。