转基因动物
参考答案:
将体外重组DNA移植到胚胎细胞中,发育成动物个体,并以可遗传的方式载有被转移的基因
Mary, how old are you this gear?
_______. And My parents just had a party for my ______birthday last monty.
A.Fifteen, fifteenth
B.Fiveteen, fiveteenth
C.Fifteenth, fifteen
D.Fiveteerth, fiveteen
患者头痛以前额为甚,面红,牙痛,便干,舌红苔黄,脉弦。处方用药加用白芷,除治疗效应外,其"引经报使"作用在
A.少阳经
B.太阳经
C.阳明经
D.少阴经
E.厥阴经