外界没有CO2只有O2时光合作用和呼吸作用哪个更强

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• 外界没有CO2只有O2时光合作用和呼吸作用哪个更强
• 外界没有CO2只有O2时光合作用和呼吸作用哪个更强光合作用（除CO2外）和呼吸作用的条件全部具备.
• 1.若方程(x+1)/2-(2x-1)/5=(1/2x)-1与方程2x+(6a-x)/2=(a/3)-2x的解相同,求（a平方-2a）/a的值 2.某校七年级（1）、（2）两班共有95人,体育锻炼平均达标率（达到标准的百分率）是60%,如果
• the new year's eve party was阅读答案The New Year’s Eve party was going on when the bell rang.A tall man opened the door and came in.Nobody knew him,but the host went over and took him in.The man sat there happily for an hour and drunk.Then he said,“invited me to this party.I don’t know you,or anyone else here.My wife and I wanted to go out in our car,but one of your friend’s cars was in front of our gate,so I came here to find him,and my wife is still wai