绿色植物呼吸作用的产物是（） A．氧和有机物 B．氧和二_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题选择题

绿色植物呼吸作用的产物是（　　）

A．氧和有机物

B．氧和二氧化碳

C．水和二氧化碳

D．水和有机物

答案

绿色植物的呼吸作用是指把细胞内的有机物在氧的作用下分解产生二氧化碳和水，同时释放出能量的过程．呼吸作用的反应式：有机物+氧

线粒体

二氧化碳+水+能量．所以绿色植物呼吸作用的产物是二氧化碳和水．

故选C．

完形填空

I believe ___36__ is a powerful(强效的) medicine.
It was Sunday. I had the last __37__ to see and I get into her room. She was an old woman, sitting on the bed, trying to ____38__ her socks. Usually I said something like this: “How are you feeling? The nurse says your _39__ is visiting you today. I believe you are __40__ him.
She ___41___ with a serious voice, “ Sit down, doctor. This is my story, not yours.” I was surprised and ___42___. I sat down and helped her with the ___43__. She began to tell me that her only son lived not far away from her, ___44___ she had not seen him for five years. She believed her ___45__ problems were worse because of ___46__ her son. After hearing her story and helping her put on her socks, I asked if there was ____47___ I could do for her. She __48__ her head and smiled. All she wanted me to do was to __49__.
Each story is ___50__. Some are clear; others are not. Some are true; others are not, yet all those things do not __51_. What matters to the storyteller is that the story is heard.
Listening to someone’s story costs ___52___ but it is the key to healing(康复). I often ____53__ what the woman taught me, and I ____54__ myself of the importance of stopping, sitting down and truly listening. I __55___ the power of listening.

A．looking forward to

D．worrying about

C．embarrassed

C．understanding

A．nothing else

填空题

数据库运行控制包括数据库的安全性、完整性、故障恢复和【6】四个方面。