问题 选择题

右图表示在25℃下研究种子萌发过程中温度变化的实验装置:取甲、乙两个暖水瓶,甲瓶内装有萌发的豌豆种子,乙瓶内装有煮熟并冷却至25℃的豌豆种子,两瓶均用包有温度计的棉团塞严。能正确表示几小时后温度计读数的是( )

答案

答案:D

种子在萌发,即在进行呼吸作用,呼吸作用过程中,氧气分解有机物释放的能量一部分以热能的形式释放,所以暖水瓶中的温度会升高。

选择题
改错题
改错。
Mr and Mrs Peter don't go out in the evening. But last night,                                   
Mrs Peter said to his husband,                                                                  
 "There is an good film at the cinema this evening.                                             
Can we go and seeing it?"                                                                       
Mr Peter was such happy about it that he went there with his wife.                              
They both enjoyed the films.                                                                    
 They didn't get home until the film was over in eleven o'clock.                                
On their way home they saw a woman run along the road very fast and a man running
after her.    
Mr Peter drove the car slow near the woman and said to her, "Can we help you?"                  
"No, thank you." The woman said but she doesn't stop running.                                   
"My husband or I always run home after the cinema. and the last one washes the bowls
at home."  
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