【简答题】一平面简谐波沿x轴正向传播,振幅为A=0.02m,周期T=0.5s,波长λ=100m,原点处质元初相位φ=0,则波动方程的表达式( )。
【多选题】甲国某公司与中国某公司以FOB价签订了一份2000箱的食品买卖合同。中国公司为这批货物投保了一切险。甲国公司交运货物后,承运人签发了清结提单即开航。在航行途中货轮因搁浅时船长下令将该批货物的100箱投入了大海。货到目的港后发现,2000箱货物只有1890箱,除投入海中的100箱外还短少10箱。开箱后又发现,有200箱食品中有虫卵,个别已孵化为成虫,后查知承运人在途中已按照托运人的要求管理货物。在此...
A.
对于短少的10箱货物,中国公司应向承运人索赔
B.
投人大海的100箱货物应由中国公司承担其损失的风险
C.
投入大海的100箱货物可列入共同海损费用中以求补偿
D.
虽然该批货物投保了一切险,但对于含有虫卵的200箱货物保险公司不承担其风险
【单选题】A parent rushes a 4-year-old child to the emergency department after finding the child sitting on the kitchen floor holding an empty bottle of aspirin. The parent has no idea how many tablets were lef...
【单选题】The nurse is holding a ______.
【单选题】一平面简谐波沿x轴正向传播,振幅为A=0.02m,周期T=0.5s,波长λ=100m,原点处质元初相位φ=0,则波动方程的表达式( )。
【简答题】一平面简谐波沿x轴负方向传播,波速为1m/s。在x轴上某处质元的振动频率为1Hz、振幅为0.01m。在t=0时该质元恰好在正方向最大位移处。若以该质元的平衡位置为x轴的原点。求该平面简谐波的波函数。
【单选题】While being admitted to a rehabilitation unit, an 82-year-old woman mentions to the nurse that she “has trouble holding her water,” adding “if I could have that tube back in me like I had in the hospi...
A.
“Don’t worry, the staff will bring plenty of pads to keep you dry.”
B.
“I’ll put the tube back in you so you will stay dry.”
C.
“Tell me more about your problem.”
D.
“Just call the staff and we’ll help you to the bathroom in time.”