To map 100 mutants by this method would necessitate nearly 5,000 crosses.用这种方法来绘制100个突变型的遗传图就要做5000个杂交.The agglomeration and sintering of fine particles can necessitate a lowering in temperature of operation.由于微粒易于聚集和烧结,...
Eventually, you'll learn to cry that on the inside.终有一天，你会学会让泪往心里流。Unhurt, but a bit shaken, she was trying not to cry.虽安然无恙，但受了点惊吓，她强忍住不哭出来。"Yaaaaaaa," Carla let rip with the cry of the Valkyries.“呀——”卡拉放开喉咙，发出女武神瓦...