【单选题】Just as the value of a telephone network increases with each new phone ______ to the system, so does the value of a computer system increase with each program turned out.
【简答题】UNC的中文含义是( ),它用于命名文件和其他资源的一种约定。
【单选题】According to this passage, what kind of vehicle did the speaker always ride in the past?
【单选题】GPS 卫星信号取无线电波中L波段的两种不同频率的电磁波作为载波,它们的频率和波长分别为( ):
A.
f 1 = 1575.02 MHz , l 1 = 19.13 cm, f 2 = 1227.60 MHz , l 2 = 24.22 cm
B.
f 1 = 1575.32 MHz , l 1 = 19.23 cm, f 2 = 1227.66 MHz , l 2 = 22.42 cm
C.
f 1 = 1575.42 MHz , l 1 = 19.03 cm , f 2 = 1227.60 MHz , l 2 = 24.42 cm
D.
f 1 = 1575.62 MHz , l 1 = 19.53 cm , f 2 = 1227.06 MHz , l 2 = 24.12 cm
【单选题】Just as the value of a telephone network increases with each new phone ______ to the system, so does the value of a computer system increase with each program that turns out.
【单选题】The best title for the passage might be ______.
C.
Transit Police Security Program
D.
Crime-free Public Transit System
【简答题】第一章讲授完成后,请完成教材P24书上思考题与习题中: 1-1 单选题 本题写在书上即可,后面课堂授课时再讨论并核对答案; 1-2 1-4 1-5 1-8 1-10