择优的英文：
preferential

preferential是什么意思：
adj. 优先的，优惠的，优待的
  • preferential treatment.
    优先的待遇
  • preferential union shop
    优先雇佣工会会员的工厂
  • the government has offered preferential treatment.
    中央政府已经出台了一系列的倾斜政策。
  • This preferential policy is certainly a shot in the arm for them
    这一优惠政策对他们来说无疑是一帖兴奋剂
  • Support the army and give preferential treatment to the families of the armymen
    拥军优属

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