单选题 A (more sophisticated) analysis shows that an expansion (rather than) a boycott of wood products is (that) we really ought to (be after).
  • A. more sophisticated
  • B. rather than
  • C. that
  • D. be after


【正确答案】 C
【答案解析】改为what，既充当is的表语又充当be after的介词宾语，这种双重成分只能用 hat，正如前面已经提过，可以将what理解为the thing(s) that。该句意为：一个更为复杂的分析表明：木材产品的扩大生产，而非对木材产品的抵制，才是我们真正应该追求的(be after)。