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1 单选题

In a "primary succession", what makes it possible for mosses to take root


A.The type of rock.
B.The amount of sunlight.
C.The amount of moisture.
D.The effect of lichens.

1 单选题

In a "primary succession", what makes it possible for mosses to take root


A.The type of rock.
B.The amount of sunlight.
C.The amount of moisture.
D.The effect of lichens.

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