5个月健康小儿,体重为6kg,用牛奶人工喂养。
除牛奶外,还应给予多少毫升水
A.200ml
B.240ml
C.280ml
D.300ml
E.350ml
参考答案:B
It is generally accepted that Chinese were the earliest ________ football while the European established the modern rules for football.
A.played
B.playing
C.to play
D.having played
下列关于生物工程的叙述,正确的是[ ]
A.基因工程能产生自然界根本不存在的基因
B.蛋白质工程能产生自然界根本不存在的蛋白质
C.单克隆抗体的制备过程体现了动物细胞的全能性
D.通过对造血干细胞改造,治愈血友病患者,并确保其后代正常