下颌骨骨折可有()
A.骨折段异常活动
B.张口受限
C.两者均有
D.两者均无
参考答案:C
The government plans to bring in new laws, _____ parents to take more responsibility for the education of
their children. [ ]
A. forced
B. forcing
C. to be forced
D. having forced
市场微结构理论主要研究的内容有()。
A.价格形成与价格发现过程
B.市场结构与设计
C.市场透明度
D.微观结构理论的具体应用