The ( ) population may be the greatestchallenge of the world today .
The ( ) population may be the greatestchallenge of the world today .
A,increase B.increased C.increasing D.increases
A,increase B.increased C.increasing D.increases
英語人氣：765 ℃時(shí)間：2020-05-19 06:44:44
優(yōu)質(zhì)解答
C 表達(dá)漸增（不斷增長(zhǎng)的）
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