皮皮学，免费搜题
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【判断题】
数控加工程序的顺序段号必须顺序排列A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】Task 3 Listen to a dialogue and complete it.
【简答题】Listen to a dialogue between David and George and answer the following questions.
【简答题】Listen to a dialogue between Amy and Bryan and answer the following questions.
【简答题】Listen to a dialogue and do the following multiple choice exercises.
【简答题】Listen and select.Listen to a dialogue and do the following multiple choice exercises.
【简答题】Listen to a dialogue and answer the following questions.
【简答题】listen to a dialogue and then fill in the blanks.
【简答题】Listen to a dialogue and a passage, then fill in the blanks with the right words. (听一篇对话和一篇短文，用恰当的单词填空完成1-10 小题，每空一词。听三遍) Text A Used to Now Appearance have long and 1. hair has short and 2. hair Pers...
【简答题】Task 3 Dialogue Listen to a dialogue between Sam and Dick and answer the following questions.
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