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问题 单项选择题

船首向上相对运动显示方式时，本船转向时，间接回波在雷达荧光屏上的位置（）。

A．固定不动

B．以与船首转动方向相同的方向移动

C．以与船首转动方向相反的方向移动

D．固定不动或回波消失

答案

参考答案：D

完形填空

Complete the following passage by filling in each blank with one word that best fits the context.

If you plan to remain in the United States for any length of time, you will soon find 小题1:too expensive to stay in a hotel and will want to find another place to live. 小题2: is true in cities  very where in the world, the 小题3:you live outside the city, generally the lower the rents will be. However, travelling to and 小题4:the city by bus, car or train may make it as expensive as living in the city. Naturally, it is easier to join in the life of a city 小题5:one is close to the center. 小题6:this reason, you may prefer to live as close to the center of the city as possible. Or, may prefer to rent a place for only a month or two until you become more familiar with 小题7:area.
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判断题

预付账款属于债权，存在发生坏账损失的风险，因此，应提取一定比例的坏账准备。
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