According to the International Bank for Reconstruction and Development in 1995, the wealthiest 10 percent of China’s population received 30.9 percent of the income, while the poorest 10 received only 2.2 percent. Such ______ in income and wealth are found in both cities and rural areas.

A．identicalness

B．disparities

C．egalitarianism

D．curmudgeons

（）是支承架空线路导线，并使导线与导线之间，导线与杆塔之间，以及导线对大地和交叉跨越物之间有足够的安全距离

A、扒杆

B、杆塔

C、撑杆

D、塔吊