绝大多数生物在生活过程中，需要吸入____呼出____．

设a，b∈R，则“a＞b”是“a|a|＞b|b|”的（   ）

选词填写    Thomas Edison was a great American inventor（发明家）. When he was a child, he was always ____ questions and trying out new ideas. No matter how hard it was, he never gave up.
    Young Tom was in school for only three months. His teacher didn't understand why he had ____ many strange questions. Most of them were not about his lessons. The teacher didn't want to teach Tom any ____ . He asked Tom's mother to take the boy home. Tom's mother____ him to read and write, and she found him be a very good pupil. He learnt very fast and became very ____ in science.

小红第一天做了5道题，第二天、第三天和第一天做得同样多，三天一共做了几道题？

以测定的CO₂的吸收速率与释放速率为指标，研究温度对某绿色植物光合作用与呼吸作用的影响，结果如图所示．下列分析正确的是（  ）