医师经注册后从事相应的医疗、预防、保健业务应按照注册的执业地点、执业类别和（）

A.执业方向

B.执业专业

C.执业规范

D.执业证书

E.执业范围

A child, age 5, with an IQ of 65 is admitted to the hospital for evaluation. When planning care, the nurse should keep in mind that this child is

A．within the lower range of normal intelligence.

B．mildly retarded but educable.

C．moderately retarded but trainable.

D．completely dependent on others for care.