The traffic rules says children under the 4 and ___less than 4o p_英语解答

The traffic rules says children under the 4 and ___less than 4o pound must be in a safety seat
A.weighted B.weighting

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解答

B weight表示“称……的重量”,是及物动词；表示“重(多少)”,是不及物动词.
He weighs 60 kilos.他体重60公斤.