ADDACCCDBA 二、 1. Eight. 2. The earth. 3. The galaxy. 4. It is too large to imagine. 三、 1. C 2. A 3. B 4. E 四、 1. There has been life 2. so wonderful that I have seen it 3. I don’t think there is life 4. has an environment like that 5. It’s impossibleto imagine
追问不不不ubu,我要的是数学的
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