A vessel may exhibit lights other than those prescribed by the Rules as long as the additional lights（）.

If a towing vessel and her tow are severely restricted in their ability to change course，they may show lights in addition to their towing identification lights. These additional lights may be shown if the tow is（）.

If the situation arose where it became necessary to tow a disabled vessel，which statement is TRUE concerning the towing line?（）.

If a vessel is engaged in fishing according to the definitions in the Rules，it will have （）.

According to the Chemical Data Guide，epichlorohydrin is a(n)（）.

According to the passage, Wal-Mart is a .

Sometimes lights are（）by fog，haze，dust，smoke，or precipitation which may be present at the light，or between the light and the observer，and which is possibly unknown by the observer.

According to the Rules，a vessel’s length is her（）.

A tow bridle is attached to the main tow hawser at the（）.

In astern towing，a tow span，also called the tow bar or towing arch，is used to（）.

If a vessel under tow starts jumping on its tow line，the most appropriate action to alleviate the condition is to（）.

When connecting the tow bridle to a tug, the end of the bridle is passed with a（）.