题目内容
在Pentium微处理器中，浮点数的格式采用IEEE754标准。假设一个规格化的32位浮点数如下：1 10000011
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Even at current prices, a navigation computer is impressive, It can guide you from point to point in most major cities with precise turn by-turn directions spoken by a clear human sounding voice, and written on a screen in front of the driver.
The computer works with an antenna that takes signals from no fewer than three of the 24 Global Positioning System (GPS) satellites. By measuring the time required for a signal to travel between the satellites and the antenna, the car's location can be pinned down within 100 meters.
The satellite signals, along with inputs on speed from a wheel speed sensor and direction from a meter, determine the car's position even as it moves. This information is combined with a map database. Streets, land marks and points of interest are included.
Most systems are basically identical. The differences come in hardware-the way the computer accepts the driver's request for directions and the way it presents the driving instructions. On most systems, a driver enters a desired address, motorway junction or point of interest via a touch screen or disc. But the Lexus screen goes a step further: you can point to any spot on the map screen and get directions to it.
BMW's system offers set of cross hairs that can be moved across the map (you have several Choices of map scale) to pick a point you'd like to get to. Audi's screen can be switched to TV reception.
Even the voices that recite the directions can differ, with better systems like BMW's and Lexus's having a wider vocabulary. The instructions are available in French, German, Spanish, Dutch arid, Italian, as well as English. The driver can also choose parameters for determining the route: fastest, shortest or no freeways, for example.
We learn from the passage that navigation computers ______.
征收集体土地,土地补偿费归()所有。
征收耕地的补偿费,为该耕地被征收前三年平均年产值的()。
征收土地公告不包括以下()内容。
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