The male gamete could not unite with the female.雄配子不能与雌配子结合.Gametes may develop without fertilization, or meiosis may substantially precede gamete formation.配子不经过受精也可能发育,若减数分裂先于配子形成,配子也可能发育.Objective : To investigate the...
他听见从远处什么地方传来打字机的嗒嗒声。From somewhere distant he heard the clatter of a typewriter.最近，她坐在打字机前就开始变得无精打采的。She has recently begun to slouch over her typewriter.她递过来一张表格，随后又立刻埋头在打字机后面忙活起来。She handed over a form, then bobbed dow...
The principles outlined above for getting the tare weight of containers should be applied.应该用上面概述的测定容器皮重的方法.Please tell me the cargo the tare and the size?请告诉我货物的包装重量和尺寸?Net Weight: the gross weight less tare.净重: 总重扣除皮重后...