铁缺乏时，供给骨髓造血用的铁是下列哪项提供的（）
A.血红蛋白铁
B.肌红蛋白铁
C.易变池铁
D.贮存铁
E.运转中的铁
参考答案：D
The organization, _____ goal is mainly to improve women’s position in the workplace, was founded in 1996.
A．whose
B．of which
C．what
D．of what
简单表述验电的三个步骤？
