视觉分辨法即通过涂面观看自己影像，（）适用于车身的汽车。
A、涂面着色较深
B、涂面着色较浅
C、各种深浅不一
D、涂面
参考答案：A
After the mew technique was introduced ,the factory produced ____in 2001 as the year before.
A．as twice many machines
B．twice many as machines
C．as many machines twice
D．twice as many machines
韶山3B型电力机车走廊门装配时，在门及门框周边的凹槽内用80号胶粘贴（）密封条。
A.实心橡胶
B.中空橡胶
C.闭孔海绵橡胶
D.开孔海绵橡胶
