But unlike their absolutist counterparts in the Gulf and Asia, most royal families have survived because they allow voters to avoid the difficult search for a non-controversial but respected public figure.

2015年考研真题（英语一）阅读理解 Section Ⅱ

He has failed to understand that monarchies have largely survived because they provide a service—as non-controversial and non-political heads of state.

2015年考研真题（英语一）阅读理解 Section Ⅱ

The Constitutional principles that Washington alone has the power to "establish a uniform Rule of Naturalization" and that federal laws precede state laws are non-controversial.

2013年考研真题（英语一）阅读理解 Section Ⅱ