A、 Be careful not to get acid on your skin.
B、 Do not get acid on your skin.
C、 You must be careful to get acid on your skin.
答案：A
A、 Be careful not to get acid on your skin.
B、 Do not get acid on your skin.
C、 You must be careful to get acid on your skin.
答案：A
A. Sometimes, especially for comprehensive airplanes, it may be necessary to provide specific training in the proper maintenance of the airplane and its systems.
B. Sometimes, especially for complex airplanes, it may be necessary to provide specific training in the proper maintenance of the airplane and its systems.
C. Sometimes, especially for complex airplanes, it may be necessary to provide complex training in the proper maintenance of the airplane and its systems.
A. 在某种情况下,戴护目镜
B. 在某种情况下,戴防护服
C. 在某种情况下,戴呼吸设备
A. 通气油箱排放单向活门允许通气油箱内的燃油流到1号或2号主油箱。
B. 通气油箱排放检查活门使通气油箱内的燃油流动于1号和2号油箱之间。
C. 通气油箱排放单向活门使通气油箱内的燃油流入1号及2号主油箱。
A. The maximum distance between the plate edge and the frame is inferior to 0.05mm.
B. The clearance between the boundary of the panel and the bay can not exceed 0.05mm.
C. The distance between the edge of the panel and the partition must not be more than 0.05mm.
A. 发动机的驱动马达没有点火
B. 启动发动机但不点火
C. 带转发动机但不点火
A. The distance between the edge of the panels and the partition must be less than 0.05 mm.
B. The distance between the edge of the panel and the partition must be equal to 0.05mm
C. The distance between the edge of the panel and the partition must be 0.05 mm or less.
A. The repair limits are not permitted as special equipment is required.
B. The repair limits are not mentioned as special equipment is required.
C. The repair limits are not set as special equipment is required.
A. The electronic signature system shall be controlled severely and ensue the identity of the signature, signature security, unchangeable and retrospective by identification and authentication of the signatory validity;
B. The electronic signature system shall be controlled strictly and ensue the identity of the signature, signature security, revisability and traceability by identification and authentication of the signatory validity;
C. The electronic signature system shall ensue the identity of the signature, signature security, undeniable and retrospective by identification and authentication of the signatory validity. It should be controlled strictly;
A. maintenance information need to be continually updated
B. maintenance information needs to continually updated
C. maintenance information needs to be continually updated
A. Through a process called continuing airworthiness, virtually every component comprising an airplane is involved in some form of preservation, inspection, preventative maintenance, overhaul, repair, and/or replacement activity.
B. Through a process called initial airworthiness, virtually every component comprising an airplane is involved in some form of preservation, inspection, preventative maintenance, overhaul, repair, and/or replacement activity.
C. Through a process called continuing air worthiness, virtually some component comprising an airplane is involved in some form of preservation, inspection, preventative maintenance, overhaul, repair, and/or installment activity.
