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根据下列两组材料回答问题： 材料1：1 642年，比利时科学家海尔蒙特进行了一项著名的柳树实验．他在一个花盆里栽种了一棵2.3 kg的柳树．栽种前，花盆里的泥土经过高温烘烤干燥后称重为90.8 kg．以后的5年中，海尔蒙特除了只给柳树浇水外，没有在花盆里添加任何物质，每年秋天柳树的落叶也没有称重和计算：5年后，他将泥土分开称重，发现柳树的重量变成76.7 kg，泥土烘干后的重量为90.7 kg，比原来只减少0.1 kg．于是他得出结论：柳树获得的74.4kg物质只是来源于水． 材料2：科学家将一盆绿色植物放在不同渡长的光下照射，然后测量该植物对不同光质的吸光率，结果列： （1）根据你所掌握的生物学知识，判断海尔蒙特的结论是否确切？为什么？______ （2）花盆内的泥土减少了0.1 kg，其原因是______． （3）请用上表数据在下面左侧指定的方格纸内绘出植物叶片光吸收变化曲线，并分析得出结论． （4）CO 2 浓度对植物光合作用强度影响的规律如右图．当外界C02浓度处于A时，植物叶片光合作用所吸收的C0 2 量与______相等；为提高封闭大棚内作物产量，棚内人工释放C0 2 应控制在______（填图中字母）浓度为宜．C______D看出光合作用强度不再随CO 2 浓度的增加而加强，从光合作用所需条件来看，请你说出其他主要限制因素；______．
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【单选题】有以下程序: char name[20];int num; scanf("name=%s num=%d",name,&num ); 当执行上述程序,并从键盘输入:name=Lili num=1001后,name的值为
A.
name=Lili num=1001
B.
name=Lili
C.
Lili num =
D.
Lili
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【简答题】面向连接交换方式有____________ 、___________ 和___________ 。
查看完整题目与答案
【单选题】听力原文：[Professor] Well, today I thought we'd talk about hydrologic cycle. As we all know, water is essential for life, and in parts of the word, it's a precious commodity. Water continuously circulates...
A.
The economic issues concerning water.
B.
The movement of water through the earth and atmosphere.
C.
The changes in the amount of rain throughout the year.
D.
The absorption of water vapor into the atmosphere.
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【单选题】听力原文：W: I think that this is great place for our class reunion. M: Well, you should know, having organized so many previous ones. Q: What can we tell about the woman? (15)
A.
She often organizes the class reunions.
B.
She is better organized than the man.
C.
She is more intelligent than the man.
D.
The man thinks the place is good for the class reunion.
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【简答题】When something goes wrong，it can be very satisfying to say，“Well, it’s so-and-so’s fault.” or “I know I’m late，but it’s not my fault；the car broke down.” It is probably not your fault，but once you for...
查看完整题目与答案
【简答题】面向连接交换方式有____________、___________和_________。
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【单选题】30有以下程序段 char name[20]; int num; scanf("name=%s num=%d",name, &num); 当执行上述程序段,并从键盘输入:name=Lili num=1001后,name的值为
A.
name=Lili num=1001
B.
name=Lili
C.
Lili num=
D.
Lili
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【简答题】当__name__的值为【】时,表示当前模块在运行。
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【单选题】听力原文：M: Today.as our guest on Student Radio Westmark is student organizer and well-known Biology major and activist,Adeline Reed.Adeline,welcome to the show. W: Thank you.I am glad to be here. M: Firs...
A.
Recycling and its benefits.
B.
The group she belongs to.
C.
Her belief on environmental protection.
D.
The project her group is involved in.
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【单选题】有以下程序段 char name[20]; int num; scanf(“name=%s num=%d”,name,&num); 当执行上述程序段,并从键盘输入: name=Lili num=1001 后, name 的值为
A.
name=Lili num=1001
B.
name=Lili
C.
Lili num=
D.
Lili
查看完整题目与答案
相关题目：
【单选题】有以下程序: char name[20];int num; scanf("name=%s num=%d",name,&num ); 当执行上述程序,并从键盘输入:name=Lili num=1001后,name的值为
A.
name=Lili num=1001
B.
name=Lili
C.
Lili num =
D.
Lili
查看完整题目与答案
【简答题】面向连接交换方式有____________ 、___________ 和___________ 。
查看完整题目与答案
【单选题】听力原文：[Professor] Well, today I thought we'd talk about hydrologic cycle. As we all know, water is essential for life, and in parts of the word, it's a precious commodity. Water continuously circulates...
A.
The economic issues concerning water.
B.
The movement of water through the earth and atmosphere.
C.
The changes in the amount of rain throughout the year.
D.
The absorption of water vapor into the atmosphere.
查看完整题目与答案
【单选题】听力原文：W: I think that this is great place for our class reunion. M: Well, you should know, having organized so many previous ones. Q: What can we tell about the woman? (15)
A.
She often organizes the class reunions.
B.
She is better organized than the man.
C.
She is more intelligent than the man.
D.
The man thinks the place is good for the class reunion.
查看完整题目与答案
【简答题】When something goes wrong，it can be very satisfying to say，“Well, it’s so-and-so’s fault.” or “I know I’m late，but it’s not my fault；the car broke down.” It is probably not your fault，but once you for...
查看完整题目与答案
【简答题】面向连接交换方式有____________、___________和_________。
查看完整题目与答案
【单选题】30有以下程序段 char name[20]; int num; scanf("name=%s num=%d",name, &num); 当执行上述程序段,并从键盘输入:name=Lili num=1001后,name的值为
A.
name=Lili num=1001
B.
name=Lili
C.
Lili num=
D.
Lili
查看完整题目与答案
【简答题】当__name__的值为【】时,表示当前模块在运行。
查看完整题目与答案
【单选题】听力原文：M: Today.as our guest on Student Radio Westmark is student organizer and well-known Biology major and activist,Adeline Reed.Adeline,welcome to the show. W: Thank you.I am glad to be here. M: Firs...
A.
Recycling and its benefits.
B.
The group she belongs to.
C.
Her belief on environmental protection.
D.
The project her group is involved in.
查看完整题目与答案
【单选题】有以下程序段 char name[20]; int num; scanf(“name=%s num=%d”,name,&num); 当执行上述程序段,并从键盘输入: name=Lili num=1001 后, name 的值为
A.
name=Lili num=1001
B.
name=Lili
C.
Lili num=
D.
Lili
查看完整题目与答案
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