While mobile payment is already______on the Chinese mainland, scanning a code with a smartphone to pay for a product or service

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问题 While mobile payment is already______on the Chinese mainland, scanning a code with a smartphone to pay for a product or service wasn’t a popular option for Hong Kong people until lately.

选项 A、oblivious
B、obliterated
C、ambivalent
D、ubiquitous

答案D

解析 本题考查形容词辨析。分析句子结构可知,句首的while引导让步状语,两个分句间是转折关系,因此,所填形容词意思与wasn’t popular相反。ubiquitous(十分普遍的,无所不在的)符合语义,故[D]项为答案。oblivious意为“未注意到的,未觉察的”;obliterated是obliterate的过去分词形式,作形容词,意为“涂掉的,擦掉的;消失的;忘掉的”;ambivalent意为“表现出或感到矛盾的”。
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