因为电动机起动电流很大,所以要限制连续起动间隔时间和次数。()A.正确B.错误

因为电动机起动电流很大,所以要限制连续起动间隔时间和次数。()A.正确B.错误

查看答案

[阅读理解] In choosing a friend, one should be very careful. A good friend c...

[阅读理解] In choosing a friend, one should be very careful. A good friend c...

查看答案

钢材接头双面搭接焊接的长度不应少于10d,单面焊缝的长度不应小于10d。A.正确B.错误

钢材接头双面搭接焊接的长度不应少于10d,单面焊缝的长度不应小于10d。A.正确B.错误

查看答案

[完型填空] Nora was sixteen years old. She had a little brother. His brother...

[完型填空] Nora was sixteen years old. She had a little brother. His brother...

查看答案