题目内容：
根据下列短文，回答题。Top National Health Service(NHS)nurses will be able to earn $40，000 a year without leaving frontline patient care in a modification to salary structures． New“super nurse”grades will be created to enable the best staff to increase their salaries without having to move into management desk jobs Currently the most senior NHS nurses can earn a maximum$28，000 a year unless they are willing to withdraw from the frontline and become administrators．Hundreds of experienced and highly-qualified nurses are lost to patient care every year because of this oddity．
While only a few thousand of Britain’s 332，000 NHS nurses will qualify for the$40，000．plus salary，fast．track promotion schemes and a simpler grading system will increase the pay of many more．The government announced that a new simplified career structure would see just four grades replacing the existing six．Nurses will begin their careers as healthcare assistants before moving up to registered practitioner grade，followed by senior registered practitioner and ultimately consultant practitioner and a$40，000 salary．
“Nurses are rising to the challenge of modernisation，”said a government official“These proposals will help them improve their professional role further and provide a better service to Patients．We do not think mat in order to be paid more，nurses should have to move into management．Nurses working at the sharp end of patient care should have a career structure which n0 longer penalises them for wanting to stay there．”
The Nursing Strategy will include proposals to allow more flexible training courses and Improve opportunities for qualified nurses who have left the profession to return in part-time roles．The Royal College of Nursing welcomed the reforms．The top salary level falls into line with figures it had presented to ministers．
Hundreds of experienced nurses are lost to patient care every year because they__________． A．dislike the nursing job
B．are dissatisfied with their pay
C．are replaced by“super nurses”
D．lack further training for the profession
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