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单项选择题
都江堰鱼嘴的作用是：
A、溢洪
B、排沙
C、分水
D、灌溉
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相关考题
单项选择题
应急发电机新机首次更换机油是在机组使用后或一个月后（）
A.10小时
B．20小时
C．30小时
D．40小时
单项选择题
To make your driving experience in the United States safe and enjoyable, our company is providing you with this “Rules of the Road” pamphlet. Please note, however, that this pamphlet does not represent a complete list of the motor vehicle and traffic laws of the various states. Regardless of whether or not a specific law is outlined below, it is your responsibility as the driver to follow all applicable（适合的）motor vehicle and traffic laws. Do Not Drink and Drive! Each state strictly prohibits Driving While Drunk. Wear Seatbelts—It’s the Law! Also, the use of child seats for babies and small children (usually under age 5) is required to stay in all states. Place child seats in the back seat only. Stay to the Right In the United States, motor vehicles are operated on the right hand side of the road. Be extremely careful to stay to the right at all times—especially if you are from a left-hand drive country. What does a driver from a left-hand drive country need to do while driving in the US?
A、Stick to his driving practice.
B、Apply for a new driving license.
C、Take a special retraining course.
D、Keep to the right side all the time.
A.
B.
C.
未知题型
设想一个在磁盘上的文件系统的逻辑块和物理块的大小都为512B。假设每个文件的ＦＣＢ已经在内存中，对3种分配方法（连续分配，显式链接分配和单级索引分配），请问： 1）逻辑地址到物理地址的映射在系统中如何实现？ 2）举一个例子说明单级索引分配中，逻辑地址到物理地址的映射过程。
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