精密的加工面，清扫干净后应涂上防锈油，用毛毡或其他物体遮盖，以防损伤。
参考答案：对
下列对维护空气质量不利的作法的是[ ]
A．把庄稼的桔杆粉碎后翻耕
B．秋收后在田地焚烧麦桔
C．实行城市冬季集中供热
D．装修居室使用价格高一些的无毒油漆
Unfortunately, the government has shown that it will _________ the plans to build thousands of homes for people in the South hams.
A. object B agree C. object to D. agree to
