单选题 The Great ______ in the USA is 1900 meters deep and 25 kilometers wide at its maximum.
  • A. Canyon
  • B. Ford
  • C. Abyss
  • D. Quarry
【正确答案】 A
【答案解析】Canyon峡谷。Ford渡口。Abyss深渊，深坑。Quarry采石场。