如图是H随化合物在生物体内转移的过程，下列分析中正确的是（　　）

如图所示，阻值为R的电阻丝，用四种方法分别接在电压为U或2U的电源上．闭合开关后，在相同时间内虚线框里的电阻丝产生的总热量最多的是（　　）

从方框中选出适当的句子，完成对话，有两项为多余选项。

A：I have already finished reading it.

B：Who wrote it?

C：How many times have you read it?

D：So do I.

E：Have you finished it yet?

F：Is it far from here?

A：Hi, Mike! You're reading the novel again.

B：Yes, John. I've never been tired of it.

A：____.

B：Four times. Every time I read it I can learn something new.

A：Really? ____.

B：Mo Yan. I think he is a great Chinese writer.

A：____. He is also my favorite writer. Please let me have a look at it.

B：OK. Here you are.

A：Mike, what do you think of this novel after reading so many times?

B：____I haven't seen such a novel for long.

A：Where did you buy it?

B：In the Xinhua Bookshop.

A：I don't know where it is.____.

B：No, only 10 minutes' walk from here，next to the People's Park.

A：Oh，I see. I'm going there to get one, too. Thank you!

B：You're welcome!

2016年9月21日，是国际和平日。35年前，联合国确定此日，呼吁各国和各族人民在这一天停止敌对活动。但今年的国际和平日，阿富汗、伊拉克、叙利亚、也门……依然饱受战火摧残。这表明（    ）