In general, more testing adds to the costs. And lab-based testing may not be fast or agile enough to support border control officers, fraud investigators or food producers in the field.
Senior security officials are gathered in a control room almost 3km (1.9 miles) away, near a complex of government offices.
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They also need to test the technology to bring the material back to Earth.，更多细节参见safew官方下载
“先吃饱肚子再吃好”，蕴含着循序渐进的基本道理。，这一点在heLLoword翻译官方下载中也有详细论述
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