There is perhaps no other event in the natural world that is as characteristic of a season as a full chorus of spring peepers. I

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问题     There is perhaps no other event in the natural world that is as characteristic of a season as a full chorus of spring peepers. It is not only that the voices of living things are calling once more after the long silence of winter,there is something about the atmosphere in which the chorus takes place that epitomizes the season. There is a certain moist smell in the air on rainy spring nights,slow mists rise from rafts of ice floating in dark marshes,everywhere on roads through wet areas the small white forms of migrating spring peepers,wood frogs,green frogs,and pickerel frogs appear,and all around you the air will be filled with a high bell-like ringing,a little like a distant horse-drawn sleigh. That distant chorus is the voice of the spring peeper,a small tree frog no larger than the end of a little finger. Throughout history naturally have referred to it as the voice of spring.
    In actuality you may be a long way from the pond or marsh that the peepers are calling from. The voice of spring peepers can carry as much as a mile on still spring nights,and once you learn to recognize the song,there will be nights when it is difficult to escape their incessant calling. The sound will accompany you through spring,a sort of background music to the events that will be taking place around you during the season.
What kind of animal is a spring peeper?

选项 A、A wood frog
B、A pickerel frog
C、A tree frog
D、A green frog

答案C

解析 细节题。根据是第一段倒数第二句“the spring peeper,a small tree frog no larger than the end of alittle finger”可知“spring peeper”指的是“a tree frog”。所以答案为选项C。
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