When you ask the guest to repeat what he says you may say "I beg you pardon, sir" in rising tone.
查看答案
When you don't understand what the guest says and ask the guest to repeat you may say
A. Pardon, please. I'm afraid I didn't follow you.
B. Would you mind repeating a little more slowly?
C. I beg your pardon?
D. Would you mind using simpler words?
合成RNA的原料是:
A. NMP
B. NDP
C. NTP
D. dNTP
E. dNDP
关于转录的叙述错误的是:
A. DNA的两条链都可作为模板进行转录
B. DNA只有一条链可作为模板进行转录
C. 转录不需要引物
D. 转录方式为不对称转录
E. 需要RNApol催化
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