治疗慢性失血(如内痔出血)所致的贫血应选用
A.枸橼酸铁胺B.硫酸亚铁C.叶酸D.维生素B12E.甲酰四氢叶酸钙
参考答案:B
It began with a “self-discovery” process where each of us _______ a series of tests to determine what it is that we truly love doing.
A.put off
B.put through
C.put away
D.put on
普通硫黄硫化体系