The tawhid and jihad group sent al - jazeera a video showing the two unidentified bulgarians sitting with their hands cuffed , flanked by three masked men , two carrying rifles and one carrying a rocket propelled grenade launcher 该录像带显示，两名保加利亚人质双手被绑，坐在三蒙面绑架者前，其中两名绑架者手持步枪，另一人手持火箭发射器。
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Returning to a theme he has voiced many times before , the cambridge university cosmologist said that space - rockets propelled by the kind of matter / antimatter annihilation technology popularised in star trek would be needed to help homo sapiens colonise hospitable planets orbiting alien stars 这位剑桥大学宇宙论者重提他过去曾多次探讨的主题说，星舰奇航记中那种广为人知的物质?反物质的互相抵消科技推动的太空火箭，可以用来帮助人类移民到环绕外星球运行的友善行星。
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