Crawford - whose parent company is based in the US - was approached for comment, but the firm referred the BBC to the NHS.
An example of dithering using random noise. Top to bottom: original gradient, quantised after dithering, quantised without dithering.。关于这个话题，爱思助手下载最新版本提供了深入分析
It meant Collins and her crew would make it safely home.。业内人士推荐同城约会作为进阶阅读
Khapung - who retired in November - has not replied to the BBC's request for comment.