A、 Each revision and the effective page should be logged in the logbook.
B、 Only the effective revisions pages need to be recorded in the manual.
C、 Each manual shall have a record of revisions or effective pages.
答案：C
解析：这道题考察的是手册的修订记录。正确答案是C，即每本手册都应该有修订记录或有效页面记录。这是非常重要的，因为当手册需要更新或修订时，我们需要知道哪些部分是最新的，哪些部分已经过时。这样可以确保我们使用的是最新的信息，避免出现错误。
举个例子来帮助理解，就好像你的手机操作手册一样。如果手机操作手册没有记录每次的更新或修订，你可能会被一些过时的信息误导，导致操作错误或者无法正常使用手机。所以，手册上的修订记录就像是手机操作系统的更新日志，帮助你了解手机的最新功能和操作方法。这样一来，你就能更好地使用手机，避免出现问题。
A、 Each revision and the effective page should be logged in the logbook.
B、 Only the effective revisions pages need to be recorded in the manual.
C、 Each manual shall have a record of revisions or effective pages.
答案：C
解析：这道题考察的是手册的修订记录。正确答案是C，即每本手册都应该有修订记录或有效页面记录。这是非常重要的，因为当手册需要更新或修订时，我们需要知道哪些部分是最新的，哪些部分已经过时。这样可以确保我们使用的是最新的信息，避免出现错误。
举个例子来帮助理解，就好像你的手机操作手册一样。如果手机操作手册没有记录每次的更新或修订，你可能会被一些过时的信息误导，导致操作错误或者无法正常使用手机。所以，手册上的修订记录就像是手机操作系统的更新日志，帮助你了解手机的最新功能和操作方法。这样一来，你就能更好地使用手机，避免出现问题。
A. A lab analysis of the contamination is required to the frequently clogged filters.
B. When you find the filters blocked in a very short time, ask the vendor to inspect them for any contamination.
C. If the filters get clogged at an unusually early stage, send them to the laboratory to analyze the contamination.
A. Retesting and reviewing test results are optional due to discrepancies in the fuel/water sample and the ability of the detection kits to continuously measure the level of microbial growth.
B. It is very important to do the test again and confirm test results because of differences in the fuel/water sample and the ability of the detection kits to continuously measure the level of microbial growth.
C. It is mandatory to retest and evaluate test results to make sure the differences in the fuel/water sample and the ability of the detection kits to witness the level of microbial growth.
A. Using a locally made tool to do the test is also accepted.
B. You can also make a local tool to do this test.
C. You can also make a tool to do this test locally.
A. Use the correct tools to open the containers for these materials.If you do not follow these prerequisites, injury to your skin and lungs can occur.
B. Get the corrective tools to open the containers for these materials.If you do not obey these precautions, injury to your skin and lungs can occur.
C. Get the proper tools to open the containers for these materials.If you do not observe these precautions, injury to your skin and lungs can occur.
A. Detach the sensor to establish a physical connection with the adjoining structure.
B. Install the sensor to block access to the adjacent structure.
C. Take out the sensor to reach to the neighboring structure.
A. Restrictions on use of cabin pressurization during Takeoff, landing, or in flight shall be noted
B. That portion of the system is used to de-ice all airfoil surfaces once ice is formed.
C. All airfoil surfaces are equipped with that portion of the system to stop ice formation.
A. Correct operation of the parts does not allow dents to occur.
B. Dents that have an influence on the correct operation of the parts are not allowed.
C. Dents can prevent correct operation of the parts, so they are not permitted.
A. If you drink contaminated water , illness must happen.
B. You may be in trouble, if you drink bacteria free water.
C. If you drink water that contains bacteria, you will get sick.
A. When the indicator is visible, stop the pump.
B. When the indicator comes on , stop the pump.
C. Stop the pump unless the indicator comes into view.
A. Make sure the wire in this position is able to unlock the parts.
B. The wire must be positioned so that the parts can oscillate freely.
C. Ensure the wire is positioned to create a locking motion on parts.
