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题目内容双击单词支持查询和收藏哦～
A single, cheap tablet combining a range of drugs that protect against heart disease was _____________ years ago, but pharmaceutical companies were reluctant to undertake the project because it failed to provide sufficient financial incentive.
- A.banned
- B.broached
- C.proscribed
- D.proposed
- E.authorized
- F.developed
B,D显示答案
以上解析由 考满分老师提供。
