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Questions 25 and 26 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. Now, listen to the news. The U. S. -South Korea maneuvers will be conducted ______.
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装配割嘴时，必须使内嘴和外嘴保持同心，否则，切割氧射流将发生偏斜。( )
Questions 27 and 28 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. Now, listen to the news. It can be inferred from the news that the flowers will have been sent to their destinations _______.
Questions 4 to 6 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions. Now, listen to the conversation. Which of the following is true, according to the conversation
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