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A. | 降低呼吸作用 | B. | 降低蒸騰作用 | C. | 促進(jìn)果實成熟 | D. | 增強(qiáng)光合作用 |
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結(jié)構(gòu)示意圖 | 左心房 | 右心室 | 主動脈 | 下腔靜脈 | 房室瓣 | 肺動脈 |
[A] | [A] | [A] | [A] | [A] | [A] | |
[B] | [B] | [B] | [B] | [B] | [B] | |
[C] | [C] | [C] | [C] | [C] | [C] | |
[D] | [D] | [D] | [D] | [D] | [D] | |
[E] | [E] | [E] | [E] | [E] | [E] | |
[F] | [F] | [F] | [F] | [F] | [F] | |
[G] | [G] | [G] | [G] | [G] | [G] | |
[H] | [H] | [H] | [H] | [H] | [H] | |
[I] | [I] | [I] | [I] | [I] | [I] | |
[J] | [J] | [J] | [J] | [J] | [J] | |
[K] | [K] | [K] | [K] | [K] | [K] |
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