Control of these emissions by adequate gas-cleaning processing is essential. The underlined part means______.

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问题 Control of these emissions by adequate gas-cleaning processing is essential. The underlined part means______.

选项 A、abundant
B、sufficient
C、accurate
D、satisfactory

答案B

解析 语义理解题。adequate意为“充足的;适当的;胜任的”,而sufficient意为“足够的;充分的”,两者意思相同,故[B]为答案。abundant意为“丰富的;充裕的;盛产的”;accurate意为“精确的;正确的”;satisfactory意为“满意的;符合要求的”。
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