题目内容
The electronic red-packet has been so ______ that AliPay and Tencent Wechat compete against each other openly and secretly since the beginning of this year.
A. popular B. convenient C. favorable D. arbitrary
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题目内容
The electronic red-packet has been so ______ that AliPay and Tencent Wechat compete against each other openly and secretly since the beginning of this year.
A. popular B. convenient C. favorable D. arbitrary