题目

阅读下面短文,从短文后各题所给的A、B、C 和 D四个选项中,选出可以填入空白处的最佳选项。 A teacher was giving a lesson to herstudents on stress management (压力管理). As she raised a glass of water,everyone in the class 1 they would be asked the half-empty orhalf-full question. 2,that was not the case. With a smile on her face, she asked the students, How3 do you think this glass ofwater weighs? Answers called out ranged from eighty totwenty ounces (盎司). She quieted the students down and thenreplied, The absolute weight doesn't 4.But it 5 on how lo已知,,则=    .
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