音域（Compass）
If the gyrocompass error is east，what describes the error and the correction to be made to gyrocompass headings to obtain true headings?A.The readings are too low (small numerically) and the amount of the error must be added to the compass to obtain trueB.The readings are too low and the amount of the error must be subtracted from the compass to obtain trueC.The readings are too high (large numerically) and the amount of the error must be added to the compass to obtain trueD.The readings are too high and the amount of the error must be subtracted from the compass to obtain true
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If a magnetic compass is not affected by any magnetic field other than the Earth’s which statement is TRUE?______.A.Compass error and variation are equalB.Compass north will be true northC.Variation will equal deviationD.There will be no compass error
Magnetic compass deviation______．A.varies depending upon the bearing usedB.is the angular difference between magnetic north and compass northC.is published on the compass rose on most nautical chartsD.is the angular difference between geographic and magnetic meridians
Magnetic heading differs from compass heading by______．A.compass errorB.true headingC.variationD.Deviation
京剧“二黄”唱腔的特点是（）A、速度较慢，音域较低，具有暗淡、凝重、平静的特点B、速度较快，音域较高，起伏跌宕，高亢、华丽、活跃、明快的特点C、速度较快，音域较高，具有庄严、凝重、悲伤的特点D、速度较快，音域较高，具有悲壮、悲愤、凄凉、悲楚的特点
Compass should be put on the （）.A、compass deckB、bridge deckC、main deckD、boat deck
下列属于高腔山歌特点的是（）。A、音域窄，但音调高B、音域窄，但旋律起伏大C、音域宽，音调高D、音域宽，旋律起伏大
