【单选题】— Have you forgotten ___________ a ruler from Wang Ling? —Oh, yes. But I’ll remember _________ it to her tomorrow.
【单选题】Wang Ling, one of my friends, is very good at English. He speaks English as if he ________ an Englishman.
【单选题】A _____ diet is good for our _____. [ ]
【简答题】A.In a pharmacology course B.From her mother C.At the student health center D.From her doctor
【简答题】阅读资料1~3,针对资料中提到的“高考移民”的问题,发表自己的见解,并提出解决问题的建议。 [要求] 观点明确,条理清晰,针对性强,不超过500字。
【单选题】下列式子中哪一个式子不能用来计算色谱柱的理论塔板数? ( )
C.
5.54( t ' R / W 1/2 ) 2