问题
单项选择题
匀速前进中的船舶主机停车后，其速度随时间变化的情况为：（）
A.呈线性变化，逐渐降速为零
B.呈线性变化，逐渐降速为定常值
C.呈非线性变化，开始降速较快，而后下降率变低，逐渐降速为零
D.呈非线性变化，开始降速较慢，而后下降率加快，逐渐降速为零
答案
参考答案：C
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匀速前进中的船舶主机停车后，其速度随时间变化的情况为：（）
A.呈线性变化，逐渐降速为零
B.呈线性变化，逐渐降速为定常值
C.呈非线性变化，开始降速较快，而后下降率变低，逐渐降速为零
D.呈非线性变化，开始降速较慢，而后下降率加快，逐渐降速为零
参考答案：C
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| There is something about New Year's Eve. In Scotland the last day of the year is the 1 important holiday of the winter, 2 important than Christmas. On New Year's Eve friends and neighbours go about from house to house drinking to each other's health and wishing good luck. 3 New Year's Day all shops and factories are closed and no 4 is done. Families meet together for a big meal and a family 5 , They often sing and dance all the night. In England New Year's Day is not 6 holiday and people go to work as 7 But on New Year's Eve most people sit up till 8 "to see the new Year in" or they 9 to parties and dances. Most of the London hotels 10 a New Year's Eve dance. | ||||
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