Form and Function B.7 Transport (id: 2086aa950)

本题目来源于试卷: Form and Function B.7 Transport，类别为 IB生物学

[单选题]
The microphotograph dv) uo5cp0 ek8q +kfz*aw:,q qbelow is an electron micrograph of a cross-section of a stem of the monocot Zea ma:qqa*f+kz,qw ys.

Which letter identifies phloem?

A.
B.
C.
D.


参考答案:  D


本题详细解析:

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