单选题 1分

The rising velocity of the globules carries them upwards where they become trapped by the under surf...

The rising velocity of the globules carries them upwards where they become trapped by the under surfaces of plates and _____ until the enlarged globules have sufficient rising velocity to travel along the plate surface and break away at the periphery.
  • A. disperse
  • B. coalesce
  • C. compress
  • D. shrinkage

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