早期缺铁性贫血形态学改变为()
A.小细胞低色素性贫血
B.小细胞正色素性贫血
C.正细胞正色素性贫血
D.大细胞性贫血
E.以上全不是
参考答案:C
The lower bound on a European call price is the greater of zero and:()
A. the underlying price minus the exercise price.
B. the present value of the exercise price minus the underlying price.
C. the underlying price minus the present value of the exercise price.
中药的剂量是指()
A.单味药成人一日量
B.单味药小儿一日量
C.单味药成人一次量
D.单味药小儿一次量
E.一剂药的用量