妊娠期贫血宜选用
A．维生素K
B．维生素B12
C．叶酸
D．硫酸亚铁
E．富马酸亚铁
参考答案：C
At first he refused to admit he had stolen but when he was shown the videotape, he _____ and admitted
everything. [ ]
A broke up
B. broke away
C. broke down
D. broke in
