【单选题】 Numerous attempts have been made to hide the truth.
- A. Many
- B. Successful
- C. Effective
- D. Unsuccessful
网考网参考答案：A
网考网解析：
[解析] numerous和many同义，许多；successful：成功的；effective：有效果的；unsuccessful：失败的。 查看试题解析出处>>
【单选题】 Numerous attempts have been made to hide the truth.
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