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come down come by come across come off
worthwhile worthy worth worthy of
any other the other another other
SE.>03Ri SE.=03Ri SE.<03Ri SE.≥03Ri
appreciate park afford offer
has taken had taken was taken is taken
X-1．96SE≥XT X-1．96SE≌XT≌X+1． 96SE X+1．96SE≤XT X-1．96SE＜XT≤X+1．96SE
Se＜15％ 15％≤Se＜35％ 35％≤Se＜70％ Se≥70％
before because although where
Se6＋ Se4＋ Se2－ 总硒 Se6＋和Se4＋
Because Although If Before
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