华盛顿看上去是个典型的体魄强健、崇尚运动的人。Washington looks like a poster boy for strength and athleticism.虽然这不是剧烈运动，但会让人感到强健、柔韧与放松。Although it's not strenuous exercise, you feel toned-up, supple and relaxed.他头脑聪明，身体强健。He's got pl...
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.Aspergillus Oryzae mutants . High pressure seems an efficient approach for mutagenesis.继各种化学制剂、各种射线诱变等方法之后, 高压不失为一种行之...