The spice cinnamon and the drugs cascara and quinine (all come) from bark, the p

游客2025-02-09 1

问题 The spice cinnamon and the drugs cascara and quinine (all come) from bark, the protective (out) layer of (stems and roots) of woody (plants).

选项 A、all come
B、out
C、stems and roots
D、plants

答案 B

解析

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