【简答题】Directions: The
following is a list of airport items. After reading it, you are required to
find the items equivalent to ( 与 ... 等同 ) those given in Chinese in the table
below. Then you should put the...
【单选题】关于数码器,以下说法错误的是 。
C.
LED 发光二极管显示器自己发光,更适合于户外使用。
【简答题】使用共阴极接法的LED数码管时, a~g应接输出 [填空(1)] 有效的显示译码器;使用共阳极接法的LED数码管时, a~g应接输出 [填空(2)] 有效的显示译码器,这样才能显示0~9十个数字。A. 高电平B. 低电平
【简答题】将十进制数(18)转换成八进制数是 (请直接填入数值,如93)。
【简答题】使用共阳极接法的 LED 数码管时,“ COM ”端应接( 1 ), a~g 应接输出( 2 )有效的显示译码器,这样才能显示 0~9 十个数字。
【简答题】A. Bill Gates enjoyed playing with earthmoving equipment B. Do you think geniuses are funny or strange? C. Leonardo da Vinci was well known for rideing horses. D. Travelling is a good way for ideas. E...