B 正确
激光laser 应该是既可用于工业,也可辅助医生做手术.选 In addition to 意为Besides.除了,还.
A 不对,except for 如
His composition is very good except for some spelling mistakes.
B 正确
激光laser 应该是既可用于工业,也可辅助医生做手术.选 In addition to 意为Besides.除了,还.
A 不对,except for 如
His composition is very good except for some spelling mistakes.