The veins of leaves are ______.I) composed of xylem and phloemII) continuous with vascular bundl

問題詳情

13. The veins of leaves are ______.I) composed of xylem and phloemII) continuous with vascular bundles in the stem and rootsIII) finely branched to be in close contact with photosynthesizing cell
(A) only I
(B) only II
(C) only III
(D) I and II
(E) I, II, and III

參考答案

答案：E
難度：適中0.611111
統計：A(1),B(0),C(0),D(3),E(11)

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