Companies usually______a number of experiments before a new product is launched.

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问题 Companies usually______a number of experiments before a new product is launched.

选项 A、practice
B、control
C、carry
D、conduct

答案D

解析句意：在一项新产品发布前公司通常会进行一些试验。practice练习，实践；control控制；carry运送，携带；conduct实施，执行。

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本试题收录于：英语题库成考专升本分类

英语

成考专升本

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