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会议注册时不知什么意思
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Pre-con Course With Conference Registration Wed AM - 199.00 Pre-con Course With Conference Registration Wed PM - 199.00 Field Trip Wednesday PM - 25.00 CD Rom/Proceedings - 199.00 Pre-con Course Wednesday AM - 249.00 Pre-con Course Wednesday PM - 249.00 请问“Pre-con Course”是啥意思啊？ 这些都看不太懂，呵呵，谁明白的麻烦给解释下哈。 |
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