Beneath the soil of the Malheur National Forest in eastern Oregon, a fungus has for centuries been slowly weaving its way through the roots of trees, to become the largest living single organism known to humans.
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Ahas for centuries been slowly weaving its way through the roots of trees, to become
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Bhas slowly woven its way through the roots of trees for centuries, and so becoming
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Cthat has been slowly weaving its way through the roots of trees for centuries has become
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Dthat has for centuries slowly woven its way through the roots of trees and has become
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Ethat, having slowly woven its way through the roots of trees for centuries, to become
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正确答案: C