第5部分：补全短文(第46～50题，每题2分，共10分)
下面的短文有5处空白，短文后有6个句子，其中5个取自短文，请根据短文内容将其分别放回原有位置，以恢复文章原貌。
A．to shrink it to the size of a desktop computer and cut the scanning time to 30 seconds
B．to making chips any smaller
C．to take tiny chips we require
D．to picture the progress of the currents
E．converting the information into a color picture showing the density of current at each point
F．faults in the metal strip of a forged banknote or bacteria in a water sample