It is difficult to understand this k

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It is difficult to understand this kind of _______ calculation.

  • A.intricate
  • B.varied
  • C.indispensable
  • D.equable

参考答案:

A

参考译文:很难理解这种错综复杂的计算。 intricate 错综复杂的,纠缠不清的; varied 不同的,种种的; indispensable不可缺少的,绝对必要的; equable 变动甚少的,稳定的。