If you are bunkering and you close off one tank in the line of tanks being filled，the rate of flow to other open tanks on the same line will（）. ["increase","decrease","stop","remain constant"]
实施配电自动化有哪些重要意义？
目前打印质量最高，速度最快的打印机是（）。 ["9针打印机","24针打印机","彩喷打印机","激光打印机"]
If the Certificate of Inspection of a damaged tank barge has expired，which certificate may be issued to allow its movement to a repair facility? （） ["Change of employment","Permit to proceed","Application for inspection","Temporary Certificate of Inspectio"]
The intake ports of a two-strike/cycle diesel engine are opened and closed by the action of the （） ["camshaft","piston movement","exhaust valves","vertical drive"]
阀弹簧太硬或太软，对阀的开启有何不良影响？对排气量有什么影响？
