Where is the tallest redwood tree found?

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问题 Where is the tallest redwood tree found?
  
M: Have you ever visited a redwood forest? I recently travelled to Muir Woods National Monument north of San Francisco.
W: I’ve never seen a redwood tree. I really have no idea of how big they are.
M: The coastal redwoods are the tallest living things. Some are more than 350 feet high. But none of the trees in Muir Woods is that tall. You have to go further north in California to see the tallest trees.
W: You said Muir Woods is near San Francisco? I guess it must be quite a tourist attraction.
M: Exactly, it’s less than an hour’s drive way, so it’s easy to get to.
W: I have heard that many redwood trees are thousands of years old. Are the ones in Muir woods that old?
M: The oldest documented age for a coastal redwood is more than 2000 years. The trees in Muir Woods are 400 to 800 years old.
W: Why have they survived so long?
M: They have remarkable resistance to forest fires. Their tough, thick bark protects the trees during a fire. The coastal redwoods also like a damp, foggy climate.
W: Then, since Muir Woods is near foggy San Francisco, it must be ideal for the trees’ survival. I can’t wait to go there and see them.

选项 A、Resistant bark and damp climate.
B、Coastal isolation.
C、Cool weather.
D、Few visitors.

答案A

解析 事实判断题。 “They have remarkable resistance to forest fires.Their tough,thick bark protects the trees during a fire.The coastal redwoods also like a damp,foggy climate.”红杉树存活时间长,是因为树皮坚硬厚实,而且喜沿海气候,所以答案为A。
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