决定物在平面镜中成像大小的因素是( )
A.物到镜的距离
B.镜的高度
C.镜的宽度
D.物的大小
因平面镜成像时像与物体大小相同,故像的大小是否物的大小决定的,
故选D.
用所给动词的适当形式填空。
1. I have been looking forward to _____ (watch) the performance by the New Ocean Waves.
2. So far the famous band _____ (make) 8 hit CDs.
3. The Smiths have _____ (go) to Japan and they will be back to China next month.
4. "Have you ever _____ (are) to America?" John asked me.
5. The cute girl _____ (write) several English novels since last term.
停工过程中,为了节省停工时间,脱硫系统循环可以和转化系统一起循环降温。