From the first paragraph we can learn that the campus life has become ______.

A．she worked for the rival of the company
B．she failed to keep her research results secret
C．she was obliged to keep her discoveries secret
D．she was committed to a contract with a company

A．it is doctors who generate income for the hospital
B．a doctor is ultimately responsible for a patient's health
C．most of the patient's bills are paid by his health insurance
D．some patients might refuse to accept their physician's advice