Secrets of top students

⒈ Example One: "If I don't understand what my teacher is explaining in the science, I ask him to say it again," says Anna Lee. "also asking more helped a lot."  ____

⒉ Example Two: "When a teacher asks us to do a lot of homework," says Dave Roman " I will draw up a timetable and plan to do it little by little, so it isn't so tiring. "  ____

⒊ Example Three: One student put a vocabulary list on the wall of the bathroom. He learned a new word every day while brushing his teeth. Another student used the time to remember biology terms while practicing running.  ____

⒋ Example Four: In high school, Mike played football, painted and was in the band. "I was so busy that I couldn't waste time looking for a pencil or missing paper. I kept everything in order." He says.  ____

⒌ Example Five: Christi is an excellent student at the university. If her math teacher asks her to do five problems, she does ten. If the history teacher asks her to read five pages, she reads ten. "Part of learning is practicing," she says, "and the more you practice, the more you learn."  ____

在三个容积均为1L密闭容器中以不同的氢碳比n（H₂）/n（CO₂）充入H₂和CO₂，在一定条件发生反应：2CO₂（g）+6H₂ （g）⇌C₂H₄（g）+4H₂O（g）△H．CO₂的平衡转化率与温度的关系如图所示．下列说法正确的是（　　）