填空题：Scientists have done a lot of study to show that praise is f

题目内容：

Scientists have done a lot of study to show that praise is far ______ (effective) than criticism in improving students' behavior.

参考答案：

答案解析：

The civil servants held a strike to protest[A] spending cuts

The civil servants held a strike to protest[A] spending cuts.[B]reform measures.

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根据下面材料，回答第题：What's the reason that Germany's chimney sweeps are Under attack?（

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Questions 9 and lo are based on the following news．At the end of the news item，y

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A) At the railway station. B) At the airport.　　C) At the police station. D) At t

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