【多选题】在计算下列各项资金的资金成本时,需要考虑筹资费用的有( )
【单选题】______ he was a regular customer, the boss allowed 10% discount off the prices of the goods.
【简答题】A.He has a big appetite. B.He eats only at regular mealtimes. C.He avoids new foods. D.He eats only healthful foods.
【多选题】在计算下列各项资金的筹资成本时,需要考虑筹资费用的有
【单选题】需要专人负责、加锁保存并列入交班内容的药物是
【简答题】考虑启闭式二元数字通信系统,信源以等概率产生0和1码,通信系统采用调幅(ASK)方式。在假设H 0 下和假设H 1 下的接收信号模型为 H 0 :x(t)=n(t),0≤t≤T H 1 :x(t)=as(t)+n(t), o≤t≤T 其中,信号as(t)的振幅为a,s(t)是归一化的确知信号,即 n(t)是均值为零、功率谱密度P(n)(ω)=NN 0 /2的高斯白噪声。试分别用正交即数展开法各充...