单项选择题
A.As long as B.As far as C.As well as D.Unless
（）, we kept removing the pistons.A.Late as it wasB.As i...
单项选择题（）, we kept removing the pistons.
A.Late as it was B.As it was late C.Since it was late D.Because of its late
The value of GM still remains one meter, meanwhile we c...
单项选择题The value of GM still remains one meter, meanwhile we can pump the ballast water to（） the ship on even keel.
A.make B.put C.keep D.get
After the order “（）” is given, the air system is shut d...
单项选择题After the order “（）” is given, the air system is shut down, the turning gear put in, all drains and indicator cocks opened, and the cooling water and lubricating oil systems kept running.
A.Stand-by Engine B.Stop Engine C.Finished With Engine D.Dead Slow Ahead
