为了能在示波器荧光屏上观察到完整波形，必须使（）频率与（）频率比值成整数倍关系。
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Which list is NOT required to be provided as part of the appendices of the Shipboard Oil Pollution Emergency Plan（）.
A list of agencies or officials of Coastal State Administrators responsible for receiving and processing incident reports
B. A list of agencies or officials in regularly visited ports
C. A list specifying who will be responsible for informing the parties listed and the priority in which they must be notified
D. A list of personnel duty assignment
油浸式变压器（电抗器）精益化评价细则要求：变压器主要元器件包括（）等应短路接地。
A. 钟罩或桶体
B. 储油柜
C. 套管
D. 升高座
在北太平洋上，某西行船舶观测到的真风为右舷20°顶风，根据风压关系判断低压应在（）。
A. 船舶的右前方
B. 船舶的左前方
C. 船舶的左后方
D. 船舶的右后方
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