2. 外语
  3. A tree sucks up water through its ______. During its growth, how much of the water from the soil does the tree give off into th

A tree sucks up water through its ______. During its growth, how much of the water from the soil does the tree give off into th

admin2009-05-15  31
问题 A tree sucks up water through its ______.
During its growth, how much of the water from the soil does the tree give off into the air through its leaves?
选项 A、About ninety-nine percent.
B、About one percent.
C、About nine-tenths.
D、About one -ninth.
答案A
解析
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