重组DNA是指为特殊目的而将
A.目的基因接到哺乳类DNAB.外源DNA接至人体DNAC.目的基因接人适当载体中D.两段DNA接在一起E.外源基因接人宿主基因
参考答案:C
As we all know,tigers and cats________the same family of beasts.[ ]
A. belonged to
B. are belonged to
C. belong to
D. are belonging to
李某,男,37岁。患病逾1年,五心烦热,午后发热,心烦失眠,多梦健忘,颧红盗汗,小便黄,大便干,舌红少苔,脉细数。
该病治疗方法是
A.温补肾阳
B.养血安神
C.滋阴清热
D.益气温阳
E.益气养心