下图表示在正常温度下，不同CO2浓度、不同光照强度对某种植物吸收CO2量的影响。请分 发布时间：2019-03-02 00:23 │ 来源：www.tikuol.com 题型：填空题 案例分析题 问题： 下图表示在正常温度下，不同CO2浓度、不同光照强度对某种植物吸收CO2量的影响。请分析回答下列问题：当光照强度为低光强时，从A点开始随着（）的增加，此植物光合作用强度不再增加。
题型：填空题 案例分析题 完形填空。 I have two friends. 1 names are Lucy and Lily. They 2 from Canada. They 3 English. My English is poor. They often help me 4 English at home. I help them 5 their Chinese. We help 6 other. They are twins(双胞胎). They 7 the same. We are in the same grade, but we are in different 8 . I like 9 and they like me. They have a pet. It is a cat. 10 name is Mimi. We like it very much. ( )1. A. Your ( )2. A. live ( )3. A. say ( )4. A. study( )5. A. at ( )6. A. every( )7. A. look ( )8. A. grade( )9. A. they ( )10. A. It B. Our B. live in B. speak B. to studyingB. in B. one B. like B. class B. them B. Its C. They C. come C. tell C. studying C. with C. each C. have C. classes C. their C. His D. Their D. comes D. think D. studies D. and D. very D. know D. school D. theirs D. Hers 查看答案
题型：填空题 案例分析题 COPD、慢性肺心病患者肺功能检查最常见的表现是（）。A.阻塞性通气功能障碍B.通气功能正常，弥散功能正常C.小气道功能障碍D.限制性通气功能障碍E.通气功能正常，弥散功能减低 查看答案
题型：填空题 案例分析题 崇左市城南新区基础设施建设正如火如荼地进行，某建筑工地上一台起重机将重1000N的水泥预制件提高9m，则该起重机做的有用功是______J，如果额外功是1000J，则机械效率是______%． 查看答案
