2. 职称英语
  3. No living thing could survive at a vent except tube worms. [br] Before 1990, no

No living thing could survive at a vent except tube worms. [br] Before 1990, no

游客2023-08-03  55
问题 No living thing could survive at a vent except tube worms. [br] Before 1990, no giant tube worms were found in Phoenix.
选项 A、Y
B、N
C、NG
答案 A
解析 Before l990，no giant tube worms were found in Phoenix．从原文最后一段最后一句可知，科学家在1993年才发现了giant tube worms。因此是Y。
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