A、 If the pump is not suitable to be used, replace it.
B、 If the pump is outmoded, replace it.
C、 If the pump malfunctions, change the location for it.
答案：A
解析：这道题考察的是逻辑推理能力。句子的意思是如果水泵无法维修，就应该更换它。选项A符合题意，因为unsuitable意思是不适合使用，与unserviceable意思相近，所以是正确答案。
举个生动的例子来帮助理解：假设你的手机屏幕坏了，修理店告诉你无法维修，只能更换新的屏幕。这种情况下，你会选择更换新的屏幕，因为旧的屏幕已经无法继续使用了，就像题目中提到的水泵无法维修一样。所以正确的做法是选择更换新的屏幕，就像选择选项A中的意思一样。
A、 If the pump is not suitable to be used, replace it.
B、 If the pump is outmoded, replace it.
C、 If the pump malfunctions, change the location for it.
答案：A
解析：这道题考察的是逻辑推理能力。句子的意思是如果水泵无法维修，就应该更换它。选项A符合题意，因为unsuitable意思是不适合使用，与unserviceable意思相近，所以是正确答案。
举个生动的例子来帮助理解：假设你的手机屏幕坏了，修理店告诉你无法维修，只能更换新的屏幕。这种情况下，你会选择更换新的屏幕，因为旧的屏幕已经无法继续使用了，就像题目中提到的水泵无法维修一样。所以正确的做法是选择更换新的屏幕，就像选择选项A中的意思一样。
A. These tests shall be independent.
B. These tests shall be self-locking.
C. These tests shall be comprehensive.
解析：这道题考察的是对英语词汇的理解能力。在题干中，我们需要理解"self-contained"这个词的含义。"Self-contained"意味着能够独立存在或运行，不需要依赖其他事物。因此，正确答案是A:These tests shall be independent。
举个生动有趣的例子来帮助理解，就好比一辆太空飞船必须是self-contained的，它需要携带足够的氧气、食物和水，不依赖外界资源。如果飞船不self-contained，就无法在太空中独立运行。所以，这道题的意思就是这些测试必须是独立的，不依赖其他因素。
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. Values in the limited range should not include parameters or variables not mentioned in the manual.
B. The specification of a given range of values in the manual excludes parameters and variables.
C. The range of values should not exceed the parameters or variables given in the manual.
A. It＇s not easy to install more than two washers for each bolt.
B. It is forbidden to install more than two washers for each bolt.
C. Installing one washer for each bolt is forbidden.
A. The main gear leg could be held by the side stay.
B. The main gear leg could be hampered by the side stay.
C. The main gear leg could be contained by the side stay.
A. The schematic diagrams need to list a lot of instructions, so the items listed are ordered according to certain rules, this is the order in which the items are placed on the plane.
B. There are schematics which need to list a lot of items, so the items listed should be sorted according to certain rules, such as the order in which the items are placed on the plane.
C. List a large number of schematics in logical order, such as the position of the items on the plane.
A. It is forbidden to go into the engine test area with approval.
B. Entering the engine test area must not be approved.
C. Approval is a must when entering the engine test area.
解析：解析：这道题考察的是AM96转向架二系悬挂装置的功能。转向架二系悬挂装置是连接轮对轴箱装置和转向架的装置，它的主要作用是支撑和保护轮对轴箱，使其能够在行驶过程中平稳运转。因此，说法“AM96转向架二系悬挂装置就是连接轮对轴箱装置和转向架的装置”是错误的。
举个生动的例子来帮助理解：想象一辆火车在铁轨上行驶，每个轮子都有一个轴箱，而这些轴箱需要通过悬挂装置连接到转向架上。悬挂装置就像是轮子和转向架之间的桥梁，起到支撑和保护的作用，使火车能够平稳行驶。如果没有悬挂装置，轮子和转向架之间的连接将会出现问题，影响火车的运行安全和稳定性。
A. The valve has flaps shaped like a full circle.
B. The shape of the valve flaps is a half ring.
C. The valve flaps have a shape of half circle.
A. The exit doors are mainly used for passenger boarding.
B. The exit doors are only used for evacuation.
C. The exit doors are not only used for the passengers to evacuate from the airplane but also used for normal exit.
A. Manufacturers would like to reserve and exercise the right to make reasonable judgments about the depth and scope of the contents of their publications.
B. Manufacturers are requested to reserve and exercise the right to judge contents of their publications of reasonable depth and scope.
C. Manufacturers are required to reserve the right of sound judgment on the contents of their publications by the bureau.
