A、 Place an open end of a tube on each plug.
B、 Put a plug on the open end of each pipe.
C、 Place a plug on each pipe with an open end.
答案：B
A、 Place an open end of a tube on each plug.
B、 Put a plug on the open end of each pipe.
C、 Place a plug on each pipe with an open end.
答案：B
A. 这会导致组件的机械性能的恶化。
B. 这会导致组件的机械部件的变形。
C. 这会导致组件的机械装置碰撞。
A. If abbreviations have special meanings, they may be used.
B. Abbreviations should not be used if they are universally meaningful.
C. Only use abbreviations whose meanings are generally recognized.
A. The tune time for a frequency not in memory is 2 to 4 seconds typical, 7 seconds maximum.
B. The adjust time for a frequency not in memory is 2 to 4 seconds typical, 7 seconds maximum.
C. The tune time for a frequency not in memory is 2 to 4 seconds common, 7 seconds maximum.
A. 刹车和转弯控制组件的电子性能可实现一定程度的自我诊断。
B. 刹车和转弯控制组件的电子性能可实现一定程度的自我校准。
C. 刹车和转弯控制组件的电子性能可实现一定程度的自我修复。
A. Magnetic tools have an adverse effect in the compass system.
B. Magnetic tools have an unwanted effect on the compass system.
C. Magnetic tools affect the compass system.
A. All reissue numbers and dates shall be reserved from pages.
B. All revision numbers and dates shall be removed from pages.
C. All reissue numbers and dates shall be removed from pages.
A. 安装前先润滑密封件。
B. 安装前先把润滑油进行密封。
C. 在设备前面密封润滑油。
A. The fuel shut off valves function as fire cocks.
B. The shut off valves are used to prevent fire accidents.
C. The extinguishers should function as shut off valves.
A. Chromate is added into the primer to protect corrosion.
B. A material that protects the primer from corrosion in contained in it.
C. There is corrosion-preventive material in the primer.
A. 一旦设计和批准,必须建立彻底的维修程序
B. 一旦设计和授权,必须建立全面的勤务工艺
C. 一旦设想和批准,必须建立全面的修理程序
