题目内容

NAVTEX is a simple, cheap, automated receiver which can be mounted_______________.

A. on the bridge
B. on the deck
C. in the holds
D. in the engine room

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What means is used to avoid mutual interference by stations in the NAVTEX system?

A. Stations are limited to daytime operation only.
Both of the following measures are necessary. transmitter power is limited to that necessary for coverage of assigned area and transmissions by stations in each NAVAREA are arranged in a time-sharing basis.
C. Transmitter power is limited to chat necessary for coverage of assigned area.
D. Transmissions by stations in each NAVAREA are arranged in a time-sharing basis.

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What is an indication of an out-of paper condition on a NAVTEX receiver?

A. Unit ceases all operation until paper is replaced.
B. Audible and / or visual alarm signal is displayed.
C. External alarm. if fitted, is activated.
D. All of the above.

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什么是驻点

A. 函数曲线上满足一阶导数值不存在的点
B. 函数曲线上满足一阶导数值为0的点

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什么情况下，驻点一定是单调区间的分界点

A. 驻点的左右两侧函数单调性不同时
B. 驻点的左右两侧函数单调性相同时

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NAVTEX is a simple, cheap, automated receiver which can be mounted_______________.

A. on the bridge B. on the deck C. in the holds D. in the engine room

What means is used to avoid mutual interference by stations in the NAVTEX system?

What is an indication of an out-of paper condition on a NAVTEX receiver?

什么是驻点

什么情况下，驻点一定是单调区间的分界点

A. on the bridge
B. on the deck
C. in the holds
D. in the engine room