我公司作为共保体的首席承保人，享有试点地区政府机动车辆的独家承保权。
参考答案：错
______ their homework, these three students have to stay in the classroom for another thirty minutes.
A．Not finishing
B．Not finished
C．Having not finished
D．Not having finished
产业政策研究领域从纵的方面来看包括的内容主要有哪些？
