?8573.An aircraft oxygen bottle may be considered air- worthy if it has been hydrostatically tested and identified

发布于 2021-02-18 22:12:14
【单选题】
A ?with the test date, DOT number and serial number stamped on the cylinder near the neck.
B ?with the DOT number, serial number and manufacturer stamped on the cylinder near the neck.
C ?with the DOT number and manufacturer stamped on the cylinder near the neck.

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