摘要： Although medical science control over several dangerous diseases, what worries us is that some of them are returning. A. achieved B. has achieved C. will achieve D. had achieved
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Although medical science ________ control over several dangerous diseases, what worries us is that some of them are returning．
- A.achieved
- B.has achieved
- C.will achieve
- D.had achieved
Although medical science ______ control over several dangerous diseases, what worries us is that some of them are returning.
A. achieved B. has achieved C. will achieve D. had achieved
查看习题详情和答案>>Although medical science________ control over several dangerous diseases, what worries us is that some of them are returning.?
| A．achieved | B．has achieved |
| C．will achieve | D．had achieved |