摘要： The doctor will not perform the operation it is absolutely necessary. A. when B. if C. for D. unless
网址：http://m.1010jiajiao.com/timu3_id_2485862[举报]
The doctor will not perform the operation ___ it is absolutely necessary.
A. when B. if C. for D. unless
查看习题详情和答案>>The doctor will not perform the operation ___ it is absolutely necessary.
A. when B. if C. for D. unless
查看习题详情和答案>>The doctor will not perform the operation ___ it is absolutely necessary.
A. when B. if C. for D. unless
查看习题详情和答案>>