对于薄钢板工件的大面积除锈，宜采用（）。
A、喷砂
B、喷丸
C、钢丝刷
D、酸洗
参考答案：D
The students _______ a video about Barack Obama's speech The Change We Need at 7:00 tomorrow
evening in the classroom.[ ]
A. will watch
B. would watch
C. will be watching
D. would be watching
新中国的服装经历了哪几个阶段？改革开放后又出现了哪些变化？其原因是什么？
