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Last week local shrimpers held a news conference to take some credit for the resurgence of the rare Kemp's ridley turtle, saying that their compliance with laws requiring that turtle-excluder devices be on shrimp nets protect adult sea turtles. A. requiring that turtle-excluder devices be on shrimp nets protect B. requiring turtle-excluder devices on shrimp nets is protecting C. that require turtle-excluder devices on shrimp nets protect D. to require turtle-excluder devices on shrimp nets are protecting E. to require turtle-excluder devices on shrimp nets is protecting 答案是B 而我认为是C。理由: require 所引导的宾从用虚拟。。。不知道原何B是答案,请指点,谢谢! |