了解三氯 乙醛 的毒性和致突变作用.Acute toxicity test , mutation test and single - cell gel electrophoresis ( SCGE ) were used.三氯乙醛是无色挥发性的液体,带有刺激性很强的气味,在97.7℃沸腾.Chloral is a colorless, volatile liquid with a very penetrating odor and bo...
In dolichocephaly the head circumference remains normal and the biparietal diameter appears abnormally small.长头时,头围仍正常,而双顶径明显变小.Results CCD and TCD of Normal fetuses were correlated well with the biparietal diameter ( BP...
All these different ideas can be subsumed under just two broad categories.所有这些不同的想法可归为两大类。Much as relativity subsumed Newtonian physics, a quantum theory of gravity will ultimately subsume relativity.就如同相对论将牛顿物理学给纳入一般, 终...