三级≥1.2mm铜质芯线电缆线路一个增音段内直流不平衡电阻应>()欧。
A.2
B.2.5
C.3
D.3.5
参考答案:B
Questions 11-15 · Look at the charts below. They show company sales. · Which chart does each sentence (11-15) describe · For each sentence, mark one letter (A-E) on your Answer Sheet. · Do not use any letter more than once.
Sales didn’t change from 2006 to 2008.
随着显示器分辨率的提高,刷新速度的加快,以及为了提高PC机的3D图形处理性能,目前显示卡大多采用一种新的接口规范,用于把主存和显存直接连接起来,这种接口规范称为【 】。