【单选题】You have isolated a new species of mRNA using an oligo-dT column. You then perform an R-looping experiment to determine if the gene encoding for your mRNA contains introns. Below is a representation o...
【简答题】根据中文和英文提示,写一封意思连贯、符合逻辑、不少于60词的回信。信的开头和结尾已给出,其词数不计入所完成的回信内。请不要写出你的校名和姓名。 假设你叫张华,是美国中学生鲍勃的朋友。你收到了他的电子邮件,请给他回复,回答他的问题,提出你的建议,并就此事谈谈你的看法。 Hi! Zhang Hua, I have a big problem these days. I spend much tim...
【简答题】The importance of Ohm's Law is that if you know the value two of the variables in the equation, you can then determine the third. If you know current and resistance, you can find voltage from V = I R ...
【简答题】The following questions relate to inhabitants of the island of knights and knaves created by Smullyan, where knights always tell the truth and knaves always lie. You encounter two people, A and B . De...