A report of casualty to a mobile offshore drilling unit must include （）.
Each year in the United States, many black teenagers（）of school, either because they cannot keep up or they have to work to support their family.
Under the regulations implementing MARPOL, a mobile offshore drilling unit is required to have an International Oil Pollution Prevention (IOPP) certificate when the unit （）.
According to the regulations for mobile offshore drilling units，“industrial personnel” are considered to be all persons carried on the ship for the sole purpose of carrying out the industrial business of the unit，except for（）.
For use as protection from gas leaking from a refrigeration unit，each ship must be equipped with a（）.
An integral part of a blowout preventer that serves as the closing element on an open hole，and whose ends do not fit around the drill pipe but seal against each other and shut off the space below completely is the（）.
An offshore drilling unit is required to carry on board an operations manual approved by the （）.
To determine what navigation lights and day-shapes must be displayed on mobile offshore drilling units under tow，you should check the（）.
Each hand portable，semi-portable and fixed fire extinguishing unit on a ship must be tested and inspected at least once every（）.
Temporary Certificates of Inspection for offshore drilling units are effective until the （）.
After reporting a casualty to a mobile offshore drilling unit，which record must be retained on board? （）
In the case of an injury causing a person to be incapacitated，the Master or person in charge of a mobile offshore drilling unit must submit a report to the（）.
Each emergency generator on a mobile offshore drilling unit，when tested，must be run under a full load for at least（）.
Each fire hydrant serving machinery spaces containing oil fired boilers，internal combustion machinery，or oil fuel units must be equipped with a（）.
（） of an engine crankshaft can be detected by measuring deflections of crank webs for each unit of the engine.
When a marine surveyor is employed to assist in the move of a mobile offshore drilling unit，he（）.
To determine the number of Able Seamen required on a mobile offshore drilling unit，you should check the（）.
Where must you record the date of each emergency training drill conducted on a ship（）.
A jack-up drilling unit elevated on the Outer Continental Shelf must have a fog horn that will sound（）.
An offshore drilling unit must be equipped with a first aid kit approved by the（）.
Each fire drill shall not include（）.
Despite all the health warnings, the number of smokers in the United States continues to rise each year.
According to the regulations for mobile offshore drilling units，"industrial personnel" are considered to be all persons carried on the ship for the sole purpose of carrying out the industrial business of the unit，except for ______.
听力原文：The United States and other western counties have experienced adjustment problems with each new wave of immigrants.
