2. 考研
  3. Pollutants introduced into a lake can rapidly accelerate its natural aging process.

Pollutants introduced into a lake can rapidly accelerate its natural aging process.

admin2014-03-15  37
问题 Pollutants introduced into a lake can rapidly accelerate its natural aging process.
选项 A、change
B、speed up
C、turn around
D、destroy
答案B
解析  画线词accelerate的意思是“加快，加速”。含义与speedup同。辨义：A．change变化； B．speedup加快，力D速，词义与accelerate相同；C．turnaround旋转；D．destroy破坏。故正确答案为B。
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