【单选题】What do local residents claim for?
A.
They are sick because of years of pollution.
B.
They ere sick because of pesticides from agriculture.
C.
They ere sick because of industries on their doorsteps.
D.
They are sick because of air pollution.
【单选题】What is the common vowel sound for the following combinations underlined: interf ere , adh ere , sinc ere ?
【单选题】独山玉属()化斜长岩,颜色非常稳定,自然状态下千年不褪,按照颜色将独山玉分为白玉、绿玉、黑白玉、黑玉。