问题
选择题
The government placed _____ on the numbers of foreign cars that could be imported.
A．limitations
B．restraint
C．requirements
D．restrictions
答案
D
restriction(可数名称)限制性规定：It is a club with rigid restrictions on its membership.Limitation局限性，不足之处，不利之处（可数）：1)I know my limitations.(我了解我的不足之处。) 2)Every from of art has its limitations.（每种艺术形式都有其局限性。）