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【题目】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

【答案】A

【解析】考查形容词词义辨析。popular流行的,受欢迎的;convenient方便的;favorable有利的,赞同的;arbitrary武断的,任意的。句意:电子红包如此受欢迎以至于从今年年初,支付宝和腾讯微信就明里暗里进行着竞争。由句意可知,A选项正确。

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