词典词库拼词范例测验

an 测验

EN[æn] [-æn] [ən] [h]
US US, unstressed in the phrase "an egg"
一个
    选择每个问题的最合适的答案。
  • 问题 1 :
  • MOLT-4 is a T lymphoblast, suspension cell line derived from __ acute lymphoblastic leukemia while the HL-60 cell line is a promyeloblast derived from acute promyelocytic leukemia.
    1. ans
    2. an
  • 问题 2 :
  • Accepting that hydrothermal ores may form specifically from anomalously metal-rich batches of fluid implies geochemically specialized source regions and __ episodicity and potentially short duration of oreforming events that may be controlled by changes in hydrology.
    1. ans
    2. an
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相关连结:
  1. en and
  2. fr an
  3. en any
  4. en another
  5. en anything
资料来源: 维基词典
困难度: 级别 1
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容易     ➨     困难
明确性: 级别 9
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明确的    ➨     多用途
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