At this point esch chromosome consist of a pair of chromatids and the two associated chromosomes are termed a tetrad.此时每条染色体由一对染色单体构成,这两条联合的染色体称为四分体.The Y chromosome is starting to yield other intriguing tales as well.Y染...
I sat on the stairs and watched, fascinated.我坐在楼梯上出神地观望。I slid into a depression and became morbidly fascinated with death.我陷入消沉，开始对死亡有种病态的迷恋。I was always fascinated by the acrobats at the circus.我总是着迷于马戏团里的杂技演员.A new ge...
Drop the dough onto a baking sheet with a teaspoon.用茶匙把生面团舀到烤盘上。Finely grate about a teaspoon of orange zest and put aside.将橙皮擦出大约一茶匙的细末待用。Stir in 1 level teaspoon of yeast.加入一平茶匙的酵母后搅拌。...
Any medical expenses not covered by ACES insurance are the sole responsibility of the parents.任何ACES保险未包括的医疗费用一律是父母的责任.'When I was an adolescent,' says a thirty-one-year-old man, 'I thought girls held all ...
Lettie groped blindly for the glass.莱蒂摸索着找杯子。Never copy foreign things blindly or mechanically.绝不能盲目或机械地照搬外国的东西。Yet again, they were looking for their way home blindly, enviously.然而, 它们又一次盲目地 、 忌妒地寻找着归途.She fired blindly...