填空题:现代工业使得大气中CO2的浓度不断提高,这一环境变化趋势更有利于______。A.水稻生长,因为超过一定的胞间CO2浓度

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题目内容:
现代工业使得大气中CO2的浓度不断提高,这一环境变化趋势更有利于______。
A.水稻生长,因为超过一定的胞间CO2浓度后玉米的酶活性不再增加
B.水稻生长,因为在较低胞间CO2浓度范围内水稻的酶活性较高
C.玉米生长,因为它们的光合效率极高
D.玉米生长,因为它们拥有CO2泵
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