我在新疆乌苏市白杨沟镇中心学校上学，我现在上上七年级了。
I was in xinjiang wusu poplar ditch school in the town centre, I am in grade seven now.
目的进一步明确乌苏市高砷、高氟区分布范围，为防治工作提供科学依据。
Objective to deepen the depth and widen the range of the surveillance on the distribution of high arsenic and high fluoride in Wusu City thus to provide scientific basis for prevention.
应用推荐