[单项选择]降低安全库存的基本措施中不包括 ( )
A. 尽量“拉平”需求波动
B. 改善需求预测工作
C. 增加设备和人员的柔性
D. 减少供应的不确定性

此题要求改正所给短文中的错。对标有号的每一行作出判断；如无错误，在该行右边横线上面一个勾(√)；如有错误(每行最多只有一个错误)， 则按下列情况改正：
多一词：把多作的词用斜线(/)划掉，在该行右边横线上写出该词，并也用斜线划掉。
缺一词：在缺词处加一个字符号(∧)，在该行右边横线上写出该加的词。
错一词：在错的词下划一横线，在该行右边横线上写出改正后的词。
注意：原行没有错的不要改。
You can find all kinds information in just a few minutes 76.______
on the Internet. It’s like going to a huge library without have to 77.______
walk around to find your books. Recently even though, many 78.______
people have been discussing the dangers of the Internet. They 79.______
have been reports in America about people trying to steal 80.______
person information for bad purposes. Finding information on 81.______
the Net is easy. But not all information are good to society. For 82.______
example, you can find such information like how to kill 83.______
people. The problem will become seriouser in the future. The 84.______
government has