单项选择题
A.oxygen B.nitrogen C.compressed air D.nitrogen and oxygen
The (auto)ignition temperature is that temperature atwh...
单项选择题The (auto)ignition temperature is that temperature atwhich（）.
A.no spark or flame is required to ignite gas or vapor B.a fuel begins to give off explosive vapors C.a fuel if ignited will continue to burn D.a 1% mixture of the fuel with air will explode
Sulfuric acid is a（）.A.clear syrupy liquid with no odor...
单项选择题Sulfuric acid is a（）.
A.clear syrupy liquid with no odor B.colorless-to-brown liquid with a choking odor when hot C.colorless liquid with a pleasant fruity odor D.whitish liquid with a faint，pleasant odor
Sometimes charter-party expressly prohibit the loading ...
单项选择题Sometimes charter-party expressly prohibit the loading of dangerous goods，but sometimes a Charterer is entitled by an express term to load them provided that due notice is given （）.
A.to the master B.the charterer C.the merchant D.receiver
