【简答题】A.sensible B.sentimental C.sensitive D.responsive
【判断题】The product's high margins will require a focus on service level, and hence the supply chain needs to be more responsive; but the increase in supply chain cost will not be offset by the higher margin.
【单选题】– Do you have any idea which to choose? --- Well, you’d better take this one. It’s ______in price and good in quality.
【简答题】某光纤的纤芯直径为8μm,纤芯折射率为1.465,包层折射率为1.46,则该光纤用来传输工作波长为1.55μm的光信号时归一化频率为( )。
【简答题】某光纤的纤芯直径为8μm,纤芯折射率为1.465,包层折射率为1.46,则该光纤的截止波长为( )μm。