____ to light for a long time, the potatoes turned green.


  1. A.
    Introduced to
  2. B.
    Exposed to
  3. C.
    Linked to
  4. D.
    Connected to
B
考查短語辨析。Introduced to介紹給，Exposed to暴露于，Linked to 聯(lián)系，. Connected to與什么聯(lián)系。句意：長時間暴露于光下，土豆會變綠。所以選B。
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