For one or two types of engine, the piston and rod can be withdrawn downwards from the cylinder into the crankcase and then out through the （）.

For one or two types of engine,the piston and rod can be withdrawn downwards from the cylinder into the crankcase and then out through （）.

On a small boat，which knot is best suited for attaching a line to the ring of an anchor?（）

The best method of extinguishing a class A fire is to（）.

The best method of extinguishing a class A fire is to （）.

Instead of whipping an end of a line，a temporary means of preventing the line from unraveling is to tie a（）.

Which two statements describe the operation of the CSMA/CD access method, which is in use on the Ezonexam network? (Choose two)

What are two circumstances for which it may be advisable to use the  silent uninstallation method instead of an interactive method？（）

Which of the following might be the best title for the passage?

Which of the following might be the best title for the passage?

The BEST method of applying foam to a fire is to（）.

The best method of determining if a vessel is dragging anchor is to note（）.