多项选择题 采样必须遵守的原则包括（） A、采集的样品要均匀，有代表性 B、采集的样品能反应全部被测食品的组分、质量和卫生状况 C、采样过程中要设法保持原有的理化指标 D、采样过程中要防止成分逸散或带入杂质

单项选择题 According to the metaphor of the patchwork quilt, we can know that… A. The entrepreneurs using effectual approach have wider latitude in putting together the pattern B. The entrepreneurs using effectual approach usually work alone C. The entrepreneurs using effectual approach don't need to make the quilt meaningful but pleasing

多项选择题 以下哪些订单状态需要卖家跟进处理（）A. 等待发货订单B. 有纠纷的订单C. 等待确认收货订单D. 买家申请取消订单