单选题 It has been said that the Acts provided a new course of action and did not merely regulate or enlarge an old one.
A. limit B. control C. replace D. offset

【正确答案】 B

【答案解析】动词regulate是“调节、控制”的意思。又如：The traffic in the tunnel is regulated by a computer system. 隧道里的交通由一个计算机系统来控制。故control是最佳答案，limit“限制”，replace“取代”，offset“抵消”。