严肃与谨慎相结合政策的总精神就是不枉不纵。其具体应用就是坚持稳、准、狠。( )
参考答案：对
Assume thirty percent of the CFA candidates have a degree in economics. A random sample of three CFA candidates is selected. What is the probability that none of them has a degree in economics（）
A. 0.343.
B. 0.900.
C. 0.027.
颈椎病的护理诊断中与脊髓或神经根受压有关的是
A．受伤危险B．潜在并发症C．感知改变D．感染E．组织灌流量改变
