高茎豌豆DD与矮茎豌豆dd杂交,后代的基因组成是____.
A、铁+氧气 →点燃 四氧化三铁 B、水 →通电 氢气+氧气
C、甲烷+氧气 →点燃 水+二氧化碳 D、____.
We had a very good time at the evening party.