【简答题】In the house where I grew up, it was our custom to leave the front door on the l_______(前门总是不落锁) at night.
【简答题】In the house where I grew up,
【判断题】In the house where I grew up, it was our custom to leave the front door onthe latch at night
【判断题】目标成像是否稳定主要取决于视线通过近地大气层(简称大气层)密度的变化情况。
【简答题】In the house where I grew up, it was our custom to_____________________ (前门总是不落锁) at night.
【单选题】某轮顶流航行,船速15kn,流速2kn,2h后相对计程仪读数差为32'.0,计程仪改正率+10%,则该轮对水航程为()。