A:治疗“非典”,利用的是抗原抗体反应
B:诊断“非典”,利用的是分子杂交原理
C:诊断“非典”,利用的是抗原抗体反应
D:治疗“非典”,利用的是DNA分子杂交原理
已知下列一组数:1,34,59,716,925,…;用代数式表示第n个数,则第n个数是( )
Dutch tulips in Dafeng are so charming that _________ tourists go there and enjoy the beautiful flowers every day.
—Would you mind _______ the answer on the blackboard, sir? We can't follow you.
—OK, I'll do it now.