【判断题】一般来说,托盘是体积、重量最大的拣货单位。
【判断题】调速阀是一种高级的节流阀,与节流阀的调速性能一样,只是控制精度更准确。
【简答题】One day,some of the girls in our neighborhood started acting a bit strangely towards me.They talking to me.After a day or so of this,I finally what was going on.I'd said something to a(n) girl the nig...
【单选题】节流阀是一种用改变油液()的办法来控制工作机构。