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第673题:装有催化剂的反应器、有填充物的大型压力容器全面检验每六年一次
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( ) 38. Usually the weather in the wetlands is _______.
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( ) 27. What does the prince do after the fox tells him a secret?
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( ) 30. When was the importance of touching all the bases shown?
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( ) 32. What does the expression “to touch all bases” mean?
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