IT系统建设的目标是通过不断的技术升级，最终实现系统替代人力，将所有的业务流程固化到系统中（）。
参考答案：错
小明的爸爸在河边挖了一块长方形菜地，长8米，宽5米．他用篱笆把不靠河边的三面围了起来，至少得用多少米篱笆？
In the past few years, My Heart Will Go On was a popular song among
young people, ____ were often heard singing it at parties
A．they
B． that
C． who
D．which
