Every period, we______ some new products to meet the need of customers.

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问题 Every period, we______ some new products to meet the need of customers.

选项 A、supplying
B、supply
C、supplied
D、supplement

答案B

解析 (A)supplying是非谓语动词，使句子成分不全；(C)时态错误；(D)supplement是名词，不合逻辑。

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