【判断题】2/10,n/60 means if the company pays within 10days, it can get 2% of discounts. If it can't get any discounts. it should pay within 60 days.
【判断题】2/10, n/60 means if the company pays within 10 days, it can get 2% of discounts. If it can't get any discounts. So, it can pay unlimitedly.
【判断题】2/10, n/60 means if the company pays within 10 days, it can get 2% of discounts.If it can't get any discounts. So it can pay unlimitedly.
【判断题】兴趣、特长与选定职业的比配,更重要的是考察自己所处的内外环境与职业目标是否相适应,不能妄自菲薄,也不能好高骛远。
【判断题】在确定职业发展的目标时要注意自己性格、兴趣、特长与选定职业的比配,更重要的是考察自己所处的内外环境与职业目标是否相适应,不能妄自菲薄,也不能好高骛远。()
【简答题】已知集合A={t|t=2n-1,n∈N * ,t<60},则集合t所有元素的和为______.
【简答题】已知图所示网络N的端电压和电流分别为 u(t)=2 cos(t-60°)+ cos(2t+45°)+ cos(3t-60°)V i(t)=10 cost+5 cos(2t-45°)A 试求:(1)此网络N对基波呈现什么性质?(2)2次谐波的输入阻抗Z 2 。(3)网络N端口电压的有效值U及网络吸收的有功功率P。