【单选题】销售员的( )是一个人综合素质的体现,需要不断地修炼和学习
【单选题】3 The ______ is the money paid by the insured to the insurer for the insurance service. It is always a percentage of the insured amount. A.i nsurance v alue B. insured amount C.p remium rate D.p remiu...
【单选题】下列各种材料中,可作为滑动轴承轴承衬使用的巴氏合金是
A.
ZSnSb11Cu6(ZChSnSb11 - 6)
D.
ZCuZn16Si4(ZHSi80 - 3)
【单选题】研究某种新药的降压效果,对100人进行试验,其显效率的95%可信区间为0.862~0.926,表示
A.
样本显效率在0.862~0.926之间的概率是95%
D.
样本率估计的抽样误差有 95% 的可能在此范围