A、 Stringers and the upper wing skin are called vent channels; The vent channels go through drain float valves in the center tank.
B、 Stringers and the upper wing skin are composed of the vent channels. The vent channels got exhaust float valves from the center tank.
C、 Stringers and the upper wing skin make the vent channels, The vent channels have drain float valves in the center tank.
答案：C
A、 Stringers and the upper wing skin are called vent channels; The vent channels go through drain float valves in the center tank.
B、 Stringers and the upper wing skin are composed of the vent channels. The vent channels got exhaust float valves from the center tank.
C、 Stringers and the upper wing skin make the vent channels, The vent channels have drain float valves in the center tank.
答案：C
A. Use some auxiliary screws to assemble the unit temporarily
B. You shall use some additional screws to install the unit permanently
C. Temporarily disassemble this unit using some auxiliary screwdrivers.
A. 步骤2只适用于潮湿的情况。
B. 步骤2只适用于潮湿的布。
C. 步骤2只适用于潮湿的天气。
A. In this specification, for those who do not have an established code, individual electrical symbols are given as a suggestion.
B. As a suggestion for those who do not have an established code, individual electrical symbols are gained in this specification.
C. As a suggestion for those who do not have an established code, individual electrical symbols are required in this specification.
A. 本规范第0.9部分要求的表格内容可以采用补充材料的日志(或清单)形式。
B. 本规范第0.9段要求的目录可以采用补充材料的日志(或清单)形式。
C. 本规范第0.9节要求,表格内容可以在补充材料的日志(或清单)中。
A. 记录穿过交流电流互感器的每束电缆的位置与颜色。
B. 记录穿过交流电流变压器的每根电缆的位置与颜色。
C. 记录每根线束的位置与颜色,这些线束是穿过交流电传感器的。
A. Find the source of the fuel leakage.
B. Find the beginning of the fuel leak.
C. Find the beginning of the fuel leakage.
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. Try to move the control column.
B. Move the control column momentarily.
C. Try to move the control column forward.
A. The introduction includes an alphabetical index subject.
B. The introduction should be included in an alphabetical index by subject.
C. An alphabetical index by subject is to be included in the introduction.
A. 一百三十二是一个整数的例子。
B. 三十二分之一是一个分数的例子。
C. 一分三十二秒是一个剪辑的片段。
