A-A+
What needs to happen before the additional pro
问题详情
What needs to happen before the additional proposals go into effect？
A．A three-month study
B．Expansion of the police force
C．Approval by the Transit Authority
D．Installation of safety locks on train cars
参考答案
正确答案：C
解析：“如果交通管理局批准(If approved by Transit Authority…)”，那么附加的法令条款将生效，因此(C)Approval by the Transit Authority(交通管理局的批准)是正确答案。
