中国大学MOOC: C_______is a hole in a tooth, caused by decay.
avity
举一反三
- Questions 17—20 are based on the following passage. According to Mr. Tait, what should we do to improve the situation of tooth decay A: Spend more money in fighting tooth decay. B: Have better education. C: Improve people’s standard of living. D: Get rid of some of our teeth.
- People<br/>need to brush ( )to prevent tooth decay. A: daily B: day C: dayly
- People need to brush ( <br/>) to prevent tooth decay. A: daily B: day C: dayly
- People need to brush<br/>( ) to prevent<br/>tooth decay. A: daily B: day C: dayly
- 中国大学MOOC: Pseudodominance is caused by
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中国大学MOOC: The flood has caused ______ in the village.
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中国大学MOOC: Which of the following is not caused by genetic difference?
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中国大学MOOC: The airline company will compensate for the delay if it is caused by _______.
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中国大学MOOC: Damage _________ the goods was caused by heavy rain _________ transit.
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中国大学MOOC: 法国大歌剧的风格特征不包括______________。