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【判断题】
Economists acting as scientists make positive statements, while economists acting as policy advisers make normative statements.A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】请根据句意从方框中选择适当的词, 并用其适当的形式填空。 be, spell, have, her, look 1. ________ is my sister, Angela. 2. How do you ________ grandma? 3. ________! This is my mother. 4. I don't ________ a son named Bob. 5. These...
【简答题】periodic table
【简答题】根据语境或句意，从所给词的适当形式填空。 1. 'I'd like to help _______ with their schoolwork. ' 'You could volunteer in an after-school study program.' (kid) 2. Teresa likes crispy cookies. They are hard, dry and _______ ...
【简答题】periodic
【简答题】结合实例谈谈修辞同语境的关系。
【简答题】periodic inventory system
【简答题】periodic system
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