单选:胞间道为分泌细胞围绕而形成的长形细胞间隙。贮藏树脂的叫做树脂道,只有某些()才具有树脂道。A.A阔叶树材B.B针叶树材C.C早材树材D.D晚

题目内容:
胞间道为分泌细胞围绕而形成的长形细胞间隙。贮藏树脂的叫做树脂道,只有某些()才具有树脂道。
A.A阔叶树材
B.B针叶树材
C.C早材树材
D.D晚材树材
参考答案:

This new country hopes to establish friendly relations with all its neighbours.

This new country hopes to establish friendly relations with all its neighbours.

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