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【简答题】
设函数 为奇函数，则实数 ___________
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【判断题】在量子力学中，描述体系的任何力学量如能量、角动量等都是可测量或可观测的，它们都可以用一个线性厄米算符来表示。
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【简答题】BBC news. Hello, this is Jerry Smit. The woman who was once seen as —1— to the German Chancellor Angela merkel has said she won't sign for the role. Annegret Kramp-Karrenbauer also plans to step down ...
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【单选题】Once she was in the house, the woman behaved as if what she was looking for .
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【简答题】Part I Directions: In this section, you'll hear some short conversations. At the end of each conversation, one question will be asked. Both the conversation and the question will be spoken only once. ...
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【多选题】722型可见分光光度计与754型紫外分光光度计技术参数相同的有()。
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【单选题】2019年政府工作报告指出:今年首次将( )政策置于宏观政策层面,旨在强化各方面重视就业、支持就业的导向。
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【单选题】The woman was once ______.
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【单选题】Once she was in the house, the woman behaved as if what she was looking for .
A.
might be in the kitchen
B.
was more likely to be upstairs
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would be easily seen by the light from the hall
D.
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【简答题】Part I Directions: In this section, you'll hear some short conversations. At the end of each conversation, one question will be asked. Both the conversation and the question will be spoken only once. ...
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