单选题 (In spite of) the ever-increasing exploitation of natural resources, (that) has now reached dangerous proportion, (little) has been done on a (world-wide) scale to slow down or stop this process.
  • A. In spite of
  • B. that
  • C. little
  • D. world-wide


【正确答案】 B
【答案解析】应为which。非限定定语从句不能用that引导。