112. Perhaps he believed that he could not criticize American foreign policy without endangering the support for civil rights that he had won from the federal government.他有可能相信,他不能够即批评美国的对外政策,同时又不危及到他从联邦政府那里已经获得的对民权运动的支持。
113. However, some broods possess a few snails of the opposing hand, and in predominantly sinistral broods, the incidence of dextrality is surprisingly high.可是,一些窝中会有一些相反旋向的蜗牛,而且在主要是左旋的窝种,出现右旋的几率是令人惊奇的高。
114. In experiments,an injection of cytoplasm from dextral eggs changes the pattern of sinistral eggs,but an injection from sinistral eggs does not influence dextral eggs.
在实验中,用取自右旋卵子的细胞质进行的注射,可改变左旋卵子的模式;用取自左旋卵子的细胞质进行的注射却不能影响到右旋卵子。
115. Recently some scientists have concluded that meteorites found on Earth and long believed to have a Martian origin might actually have been blasted free of Mars s gravity by the impact on Mars of other meteorites.
最近,某些科学家得出结论认为,那些在地球上发现的并一直被相信源自火星的陨石,实际上有可能是由于其它的陨石撞击火星而致使其被震离火星的重力作用范围。
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