【单选题】In which situation would you use the following apology? I am sorry if the instructions were not clear.
A.
When you are apologizing for a small error
B.
When you are not sure if the instructions were clear
C.
When you know you wrote unclear instruction
【判断题】汽油发动机点火时间过晚,会使发动机冷却液温度升高。
【简答题】在50m深的矿井里,需在5min内把30m 3 积水抽到井上,应该用至少多大功率的水泵抽水?
【判断题】The present tense should be used even if the instructions are no longer applicable.
【单选题】在强夯后的地基上钢管桩施工按相应定额的人工及机械乘以系数( )。
【单选题】图中渤海及辽东半岛和山东半岛气压场形势为________。
【简答题】皮影客是一款帮助普通快速制作(__)的软件。