samples selection 样本选取
Selection of samples 选型样本
learning samples selection 学习样本选取
Training samples selection 样本筛选
selection of test samples 样品选择
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It is loaded with a selection of pre-recorded samples.
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Request samples at a Kiehl's store (where the selection is usually larger) or a Kiehl's counter in a department store.
CNN: 23 surprising things you can get for free
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