33. Water potential is generally most negative in which of the following parts of a plant?
(A) Xylem vessels in roots
(B) Xylem vessels in leaves
(C) Mesophyll cells of the leaf
(D) Cells of the root cortex
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統計: A(0), B(1), C(1), D(0), E(0) #3222910
統計: A(0), B(1), C(1), D(0), E(0) #3222910