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:高中英语 来源:2013届安徽省高二下学期期末考试英语试卷(解析版) 题型:单项填空
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:高中英语 来源:2012届度安徽省高三上学期第一次月考英语题 题型:单项填空
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:高中英语 来源:20102011年安徽省高二下期末联考英语 题型:单项填空
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:高中英语 来源: 题型:单选题
科目:高中英语 来源:专项题 题型:单选题
科目:高中英语 来源:2011-2012学年安徽省无为县开城中学高二下学期期末考试英语试卷(带解析) 题型:单选题
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:高中英语 来源:安徽省泗县双语中学2012届高三摸底考试英语试题 题型:016
Scientists say it may be five years ________ it is possible to test this medicine on human patients.
since
until
before
when
科目:高中英语 来源: 题型:单选题
科目:高中英语 来源: 题型:
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:高中英语 来源: 题型:
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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