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单选题
对于标准型或可选型发动机和螺旋桨的安装以及燃/滑油系统，应提供描述性的数据。
A
For standard engine and optional thruster installations and oil system, Descriptive Data should be provided.
B
Descriptive Data shall be supplied for standard and optional engine and propeller installations and fuel and oil systems.
C
Descriptive Data shall be supplied for normal or abnormal engine and propeller installations and fuel system.
答案解析
正确答案：B
