The wearables market is still______, with only three percent of the U. S. population aged 16 and up owning a smartwatch or a sma

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问题 The wearables market is still______, with only three percent of the U. S. population aged 16 and up owning a smartwatch or a smartband.

选项 A、in its infancy
B、infant
C、infantile
D、infantry

答案A

解析 本题考查固定用法。in one’s infancy是固定用法,意为“处于初期,在婴幼儿时期”,符合语义,故为答案。infant意为“婴儿,幼儿”。infantile意为“幼稚的,孩子气的,婴儿的,幼儿的”。infantry意为“步兵”。
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