问题
填空题
某植物净光合速率的变化趋势如图所示。
据图回答下列问题：
CO2浓度大于c时，曲线B和C所表示的净光合速率不再增加，限制其增加的环境因素是（）
答案
参考答案：光强
解析：
CO2浓度大于c时，曲线B和C中的限制因素不是暗反应的CO2，而是光反应中的光照强度了。
搜题请搜索小程序“爱下问搜题”
某植物净光合速率的变化趋势如图所示。 据图回答下列问题：
CO2浓度大于c时，曲线B和C所表示的净光合速率不再增加，限制其增加的环境因素是（）
参考答案：光强
解析：
CO2浓度大于c时，曲线B和C中的限制因素不是暗反应的CO2，而是光反应中的光照强度了。
| 完形填空。 | ||||
| Susan had long blonde hair and big blue eyes. So did most of the other 1 in her school class, which troubled her a lot. "I look like everyone else! I'm not special! I'm boring!" Susan 2 to her mother. She decided to try to make herself look 3 . She painted big pink spots on her neck and when she didn't get attention, she stuck a long plastic nose on top of her real nose. Nobody noticed that, 4 . She took ink (墨水) and poured it all over her 5 . She wore clown (小丑) clothes to school and stuck leaves in her ears. 6 no matter what she did, she still didn't get any 7 and nobody thought she was special. One morning her 8 went to wake her up and told her to get ready for school. She made Susan 9 the ink out of her hair and clean her neck. "I'm not going to school 10 ! I'm boring!" She buried (埋藏) her head 11 the quilt and cried. "Susan," her mother said, "you are different. You are unique (独一无二) and special. 12 in the world looks just like you. Some people have blonde hair like you and some have blue eyes like you, but none of them has your smile or the twinkle in your eyes or your pink face. Nobody laughs like you, either. Now 13 and get ready for school." Susan went to school that day and looked at all the other kids in her class. " Mom was 14 Nobody looks just like me." Susan smiled. "I am special. I am unique and I am not 15 !" | ||||
|