单项选择题
A.Ignition lag increases B.Lube oil system pressure increases C.Brake specific fuel consumption increased D.Mechanical efficiency increaded
Piston cooling fins are located（）A.atop the piston crow...
单项选择题Piston cooling fins are located（）
A.atop the piston crown B.beneath the piston crown C.at the base of the piston skirt D.inside the cylinder liner cooling water jacket
The ship security assessment is an essential and integr...
单项选择题The ship security assessment is an essential and integral part of the process of developing and updating（）
A.the ship security plan B.the company security plan C.the port security plan D.the national security plan
If a vessel moored at a U-Sterminal does not comply wit...
单项选择题If a vessel moored at a U-Sterminal does not comply with coast guard pollution prevention regulation, it may be detained by the （）
A.Inspector general B.Captain of the port C.local port authority D.state pollution board
