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【简答题】
汉字形体表意的模糊性的原因
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皮皮学刷刷变学霸
举一反三
【单选题】The ovary has three layers of tissue. Generally, the _______becomes the fruit flesh. In many cases, he three layers are indistinguishable, and the term ______ is applied to denote all ovarian tissues ...
A.
exocarp, pericarp
B.
mesocarp, endocarp
C.
mesocarp, pericarp