It was not until 1911, the first vitamin was identified, people realized the importance of it．
A. when; which
B. when; that
C. that; which
D. that; that
It was not until 1911, the first vitamin was identified, people realized the importance
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解决时间 2021-04-04 08:19
- 提问者网友：一抹荒凉废墟
- 2021-04-03 19:34
最佳答案
- 五星知识达人网友：詩光轨車
- 2021-04-03 19:47
A. when; which(答案→)B. when; thatC. that; whichD. that; that解析：考查定语从句和强调句型。第一空when the first vitamin was identified修饰先行词1911年；第二空that与it was构成强调句型。句意：直到第一种维他命被识别住的1911年，人们才意识到维他命的重要性。故B正确。
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- 1楼网友：野慌
- 2021-04-03 20:31
感谢回答，我学习了
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