So too might the Jovian moons Callisto and Ganymede.木星的卫星木卫四和木卫三也可能有水.In their outward order from Jupiter, these moons are Io, Europa, Ganymede and Callisto.在木星的外围轨道上, 这些卫星是木卫一 、 木卫二 、 木卫三和木卫四.Callisto fell down on her h...
The important fators which affect culture conditions of ? Halobacterium halobium ? B were screened by Plackett? Burman design.利用Plackett-Burman设计筛选出影响盐生盐杆菌( Halobacteriumhalobium )B培养条件的重要因素,然后利用正交试验设计对这些重要因素加以优化....
She was wearing the obligatory sweater and pearl necklace.她穿着那件经常穿的毛衣，戴着那串惯常戴的珍珠项链。When an end is lawful and obligatory, the indispensable means to is are also lawful and obligatory. (Abraham Lincoln , American statesman...