B. help fishermen to catch more fish on the Seas

　　C. prevent all of the fishing practices on the Seas

　　D. assist port officials in deciding whether to ban a ship from fishing

　　23.What does the underlined word “they” in Paragraph 5 refer to?

　　A. The clear lists.

　　B. The investigators.

　　C. The fishing boats.

　　D. The Project Eyes.

　　B

　　In the hills outside Missoula, Montana, wildlife biologists are looking at how climate change affects something very small: the snowshoe hare.

　　Life for snowshoe hares is pretty stressful-almost everything in the forest wants to eat them.

　　Alex Kumar, a graduate student at the University of Montana, lists the animals that are hungry for hares. “Lynx(山猫), foxes, coyotes(土狼),[… even] red squirrels(松鼠).”

　　Kumar and field technician Tucker Seitz spend months searching these woods for hares, often listening for signals from hares they’ve already put radio collars(项圈) on.

　　They catch other hares with wire traps(陷阱) about the size of a breadbox, with some apples as bait(诱饵). Most of the hares they track live less than a year—a hazard(风险) of being what Kumar calls “the cheeseburger of the ecosystem.”

　　But snowshoe hares have a special skill: camouflage. They’re brown during the summer, but turn white for the snowy winter months.

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