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航海英語航海儀器使用說明書單項選擇題每日一練(2019.01.13)
來源:考試資料網(wǎng)
1
()20 targets can be tracked at one time.When maximum tracking capacity is reached,no further acquisitions are possible.
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2
You are using a radar in which your own ship is shown at the center,and the heading flash always points to 0°. If bearings are measured in relation to the flash,what type of bearings are produced?().
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3
If a magnetic compass is not affected by any magnetic field other than the Earth’s,which statement is TRUE?().
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4
My gyro-compass()is two degrees east.
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5
What will NOT induce errors into a doppler sonar log?()
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