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Which precaution should be taken when testing a line throwing gun?()

单选题
2022-01-03 14:24
A、Never remove the line from the rocket
B、Fire it at an angle of approximately 90 degrees to the horizon
C、Wear asbestos gloves
D、All of the above
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正确答案
A

试题解析

标签: 应急预案与EMS
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