营养性巨幼红细胞性贫血选用
A．叶酸B．甲酰四氢叶酸钙C．维生素B12D．右旋糖酐铁E．右旋糖酐
参考答案：A
Stay awake!You should know that it________to sleep in class. [ ]
A. doesn't permit
B. is not permitted
C. will not be permitted
D. was not permitted
企业流程再造的实施需要做好哪些准备工作？
