在进行设备购买与设备租赁方案经济比较时，应将购买方案与租赁方案视为( )。
A．互斥方案
B．相关方案
C．独立方案
D．组合方案
参考答案：A
The parents of a 3-year-old boy call the clinic to report chickenpox. When teaching the parents about how to care for the lesions, the nurse would advise which of the following
A．Soak in a hot tub for 30 minutes three times a day.
B．Take an antihistamine and use calamine lotion on the lesions.
C．Take acetaminophen and use an antibiotic ointment on the lesions.
D．Remove lesions crusts as they form.
下列哪项检查对急性胰腺炎诊断的价值最大
A．Χ线腹部平片
B．腹部B超
C．腹部CT
D．核素扫描检查
E．胃镜
