It is useful to be able to predict the extent to which a price change will affect supply
It is useful to be able to predict the extent to which a price change will affect supply
and demand.
and demand.
英語(yǔ)人氣：281 ℃時(shí)間：2020-02-05 14:01:16
優(yōu)質(zhì)解答
it:形式主語(yǔ)；is系動(dòng)詞,作謂語(yǔ)的一部分；useful表語(yǔ),作謂語(yǔ)的一部分；to be able to predict the extent to which a price change will affect supply：真正的主語(yǔ).真正的主語(yǔ)是一個(gè)不定式短語(yǔ),其中the extent to wh...
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