It is not profitable to provide bus services in districts where the population is widely ______.
A.scattered
B.dismissed
C.separated
D.spread
网友回答
A解析scattered是scatter的过去分词，也可作形容词用，（lying in different directions; not situated together, wide apart）分散的，散布在各处的。Separate分开的，spread传播；摊开，dismiss解雇。