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1 . He has ________ confidence in his father.
| A．academic | B．abstract | C．appropriate | D．absolute |
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2 . Among teenagers and young children, lack of sleep can result in attention disorders and poor a________ (学业的)performance.
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3 . It's an ____ （学术的）question；let's discuss it in groups. （根据汉语提示单词拼写）
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