在一个电气连接部分或一组电气装置，未拆除一次回路接线或未解开二次回路接线的情况下，在进行加压试验前必须停止其他相关工作。
参考答案：对
If we __________ computers, life __________ very different now.
A．didn’t have; would have been
B．wouldn’t have; was
C．didn’t have; would be
D．wouldn’t have; had been
带状疱疹的自觉症状为（）
A.有时瘙痒或疼痛
B.剧烈瘙痒
C.疼痛
D.无自觉症状
E.皮疹区麻木
