什么是行政问责？
Your 15-meter tug is underway and crossing a deep and narrow channel. A large container vessel is off your port bow on a steady bearing. Which statement is TRUE concerning this situation? （）. You should maintain course and speed。 The container vessel is the stand-on as it is the larger vessel。 You are not to impede the safe passage of the container vessel in the channel。 None of the above。
Air reservoirs are designed, built and tested similarly to （）. boiler drums。 hot wells。 condensers。 evaporator。
简述病症类型的粒状物。
下列哪些选项是绘图工具所共有的？（） Bitmap位图。 Grayscale灰度。 RGB。 CMYK。
关于企业广告中长期计划严肃性要求与灵活性要求的论述中，正确的是（）
