With the help of high technology, more and more new substances _____ in the past years. |
A. discovered B. have discovered C. had been discovered D. have been discovered |
科目:高中英語 來源: 題型:
With the help of high technology, more and more new substances____in the past years.
A. discovered B. have discovered C. had been discovered D. have been discovered
科目:高中英語 來源: 題型:
With the help of high technology, more and more new substances ______ in the past years.
A. discovered B. have discovered
C. had been discovered D. have been discovered
科目:高中英語 來源: 題型:
With the help of high technology, more and more new substances ______ in the past years.
A. discovered B. have discovered
C. had been discovered D. have been discovered
科目:高中英語 來源: 題型:
With the help of high technology, more and more new substances in the past years.
A.discovered
B.have discovered
C.had been discovered
D.have been discovered
科目:高中英語 來源:2007年高考試題(上海卷)解析版 題型:單項填空
With the help of high technology, more and more new substances ______ in the past years.
A. discovered B. have discovered
C. had been discovered D. have been discovered
科目:高中英語 來源: 題型:
With the help of high technology, more and more new substances ______ in the past years.
A. discovered B. have discovered
C. had been discovered D. have been discovered
科目:高中英語 來源:2010屆高三英語每周精析精練:動詞時態(tài)和語態(tài)(二) 題型:單項填空
With the help of high technology, more and more new substances in the past years.
A. discovered B. have discovered C. had been discovered D. have been discovered
科目:高中英語 來源: 題型:單選題
科目:高中英語 來源:上海高考真題 題型:單選題
科目:高中英語 來源: 題型:
With the help of high technology, more and more new substances ______ in the past years.
A. discovered B. have discovered
C. had been discovered D. have been discovered
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