Before being used the fuel service tank should be drained of （）.

The amount of expansion space to be left in a fuel tank when fuel oil is being received, is determined by the （）.

Lesson plans are useful only before the lesson.（）

Which of the listed conditions can be used to determine if lube oil has been diluted by fuel? （）

You have created a resource plan， DB_PLAN， using DBMS_RESOURCE_MANAGER.CREATE_SIMPLE_PLAN and you want to impose a restriction on utilization of resources by the database users. Which step must be performed before you can start using the resource plan？（）

The longer the ignition delay period resulting from improper use of low cetane fuel, the （）

When fuel oil is accidentally missed with lube oil which of the following processes can be used to separate them?（） Ⅰ.filtering Ⅱ.settling

Maintaining the close tolerances in diesel fuel pumps and injectors requires the use of（）.

Before entering a fuel tank that has been cleaned, it should be checked with an oxygen indicator and a/an（）.

If a used lube oil analysis indicates excessive fuel dilution, the lube oil should be （）

The soot blowers are operating in the oil fuel boiler the air/fuel ratio must （） throughout the action, and blowers greased after use.

Injectors for use with heavy fuel oil must be cooled by either water or light oil to （）

Dirty oil must be （） before being used again.

After purchasing the Active Memory Expansion （AME） Enablement Feature，what tasks must be completed before AME can be used？（）

Exhibit https://assets.asklib.com/images/image2/2018080211104225263.jpg Which of the following commands should be used before removing hdisk3 from the system?（）

The diesel engine must be started before it can run by it self For this purpose （） has to be used.

Before installing a new, upgraded version of the IOS, what should be checked on the router, and which command should be used to gather this information?（）

The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated （）

The important components are tested for accuracy. If they are not qualified, they need to be repaired before they can be used.

Whether a ship is sailing before the wind or sailing in the rough sea, we must reduce the fuel injection of the main engineFor the former one, it aims to prevent the main engine being , while for the later one, it aims to prevent the main engine being .

In some ways, the human body is both like a furnace and like an engine. It must have fuel to produce heat as a furnace【C1】______. It must have fuel to produce motion and do【C2】______as an engine does. The nutrients(营养物)which【C3】______energy best are carbohydrates(碳水化合物)and fats. Protein can also be used as fuel. Minerals, vitamins, and water,【C4】______extremely valuable to the body, cannot be used as fuel.

英译汉 Drinking habits vary widely among Americans. Some families never serve any drinks, others have them before dinner, or perhaps after dinner. You are more likely to be offered a cocktail before dinner than wine with the meal. If you do not get used to American cocktails, you can ask for something else. Moreover, drinks may be poured over ice.

According to the author which of the following must be achieved before cell phone use can be truly accepted？

You want the text "Unauthorized access prohibited!" to be displayed before the login prompt every time someone tries to initiate a Telnet session to a router, as shown in the example below:Which command can be used to configure this message？（）

The electric shaver______before it can be used.