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我国PAR的空间分布与气温分布大致相同 只考虑PAR值，我国农业生产潜力最大的地区是甲地 青藏高原地区农作物单产高与其PAR高有关 我国PAR的空间分布与年降水量分布完全相反
how will your family go how your family will go where your family will go where will your family go
mustn’t needn’t cant’t couldn’t
RR和AR RR和PAR RR和AR% PAR和PAR% AR和AR%
forget，to take forget，to bring left，to take left，to bring
Where did you go on vacation When did you go on vacation How was your vacation Did you enjoy your vacation
RR和PAR RR和PAR% RR和AR PAR和PAR% AR和PAR
early earlier the earlier the earliest
where your family will go how will your family go how your family will go where will your family go
left; to take forgot; bringing left; to bring forgot; to bring
go back on go after go in for go over
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