如图甲为人体血液循环示意图，图乙是肺泡与血液之间的气体交换示意图，请据图分析回答下列问题．
bring give grandma then grandpa
The Mid－Autumn Festival is coming. I like it. I am very happy. My ____and ____ are going to come to my house. They are going to ____ gifts for me. And I'm going to ____ them gifts. ____ we will eat moon cakes together. We will be happy.
黑板上写着8，9，10，11，12，13，14七个数，每次任意擦去两个数，再写上这两个数的和减1．例如，擦掉9和13，要写上21．经过几次后，黑板上就会只剩下一个数，这个数是____ ．
分子中化学键断裂时需要吸收436 kJ的能量②1 mol C1