各处理间叶片净CO2代谢速率和大气湿度无差别。
No differences in leaf net CO2 assimilation rate and air relative humidity among all the treatments were found.
“我每天都会把钢琴擦得干干净净的，不许别人碰它。”58岁的谢桂枝说，她是河南洛阳的一名退休工人。
"I clean the piano every day and don't allow other people to touch it," said Xie, 58, a retired worker in Luoyang, Henan province.
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