骨髓增生极度减低是指有核细胞与成熟红细胞之比()
A.1∶1
B.1∶10
C.1∶20
D.1∶50
E.1∶200
参考答案:E
药师参与健康教育的方式有()
A.宣传合理用药
B.开展健康知识讲座
C.提供科普教育材料
D.提供药学咨询
E.讲授相应的自我保健知识
The poor girl has to depend on _____ for living because her parents are both ill in hospital.[ ]
A. she
B. her
C. hers
D. herself