要深化（）改革，扩大公共服务，完善社会管理。
A.社会体制
B.政治体制
C.经济体制
D.文化体制
参考答案：A
According to the passage, what is a megapolis
A．One of the 10 largest cities in the United States.
B．One of the 18 largest cities in the United States.
C．One of thel00 cities between Boston and Washington.
D．Any number of continuous adjacent cities and suburbs.
在制订采购需求时，对产品或服务的规格要求当然是越详细并且要求越高越好。
