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【題目】How much does it cost to put satellite into____________?

A.gasB.orbitC.chemicalsD.vapors

【答案】B

【解析】

考查名詞詞義辨析。句意:把衛(wèi)星放入軌道要花費多少錢?A. gas氣體;B. orbit軌道;C. chemicals化學物質;D. vapors水蒸氣。根據 satellite可知,此處用“軌道”符合句意,故選B項。

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