Scientists say it may be five years _____ it is possible to test this medicine on human patients. |
A. since B. until C. before D. when |
科目:高中英語(yǔ) 來(lái)源:2013屆安徽省高二下學(xué)期期末考試英語(yǔ)試卷(解析版) 題型:單項(xiàng)填空
Scientists say it may be five years ______ it is possible to test this medicine on human patients.
A. since B. until C. before D. when
科目:高中英語(yǔ) 來(lái)源:2012屆度安徽省高三上學(xué)期第一次月考英語(yǔ)題 題型:單項(xiàng)填空
Scientists say it may be five years ______ it is possible to test this medicine on human patients.
A. since B. until C. before D. when
科目:高中英語(yǔ) 來(lái)源:20102011年安徽省高二下期末聯(lián)考英語(yǔ) 題型:單項(xiàng)填空
Scientists say it may be five years ______ it is possible to test this medicine on human patients.
A. since B. until C. before D. when
科目:高中英語(yǔ) 來(lái)源: 題型:單選題
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科目:高中英語(yǔ) 來(lái)源:2011-2012學(xué)年安徽省無(wú)為縣開(kāi)城中學(xué)高二下學(xué)期期末考試英語(yǔ)試卷(帶解析) 題型:單選題
Scientists say it may be five years ______ it is possible to test this medicine on human patients.
A.since | B.until | C.before | D.when |
科目:高中英語(yǔ) 來(lái)源:安徽省泗縣雙語(yǔ)中學(xué)2012屆高三摸底考試英語(yǔ)試題 題型:016
Scientists say it may be five years ________ it is possible to test this medicine on human patients.
since
until
before
when
科目:高中英語(yǔ) 來(lái)源: 題型:單選題
科目:高中英語(yǔ) 來(lái)源: 題型:
Scientists say it may be five or ten years___________ it is possible to test this medicine on human patients.
A.since B. before C. after D. when
科目:高中英語(yǔ) 來(lái)源: 題型:
Scientists say it may be five or ten years___________ it is possible to test this medicine on human patients.
A.since B. before C. after D. when
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