A growing plant needs water for all of the following except______ According to the passage, which of the following statements i

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问题 A growing plant needs water for all of the following except______
According to the passage, which of the following statements is TRUE?______

选项 A、The mineral elements will not be absorbed by the plant unless they are dissolved in its root
B、The woody stems contain more water than the leaves
C、Air existing around the leaf is found to be saturated
D、Only part of the carbon dioxide in the plant is synthesized

答案D

解析 第二段最后一句指出,并不是所有进入叶子的二氧化碳被合成为糖。
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