The electronic re d-packet has been so () that AliPay and Tencent Wechat compete against each other openly and secre tly since the beginning of this year. ( 章节：4 难度：2)
- A、popular
- B、convenient
- C、favorable
- D、arbitrary
正确答案:A
答案解析:有
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The electronic re d-packet has been so () that AliPay and Tencent Wechat compete against each other openly and secre tly since the beginning of this year. ( 章节：4 难度：2)
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