研究途径从政策工具本身转向政策系统、政策网络、决策系统和执行过程的是（）。
A.工具主义
B.过程主义
C.权变主义
D.建构主义
参考答案：D
He had studied hard, he would have been able to pass the exam.()
A. He had studied harder
B. if only he studied more
C. Had he studied harder
D. When he studied more
再保险合同的保险标的是( )。
A．原保险人承担的保险责任
B．原保险的保险费
C．原保险的保险标的
D．原投保人投保的不同于原保险标的的新保险标的
