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问答题


Directions: In this part of the test, you will hear 2 passages in English. You will hear the passages ONLY ONCE. After you have heard each passage, translate it into Chinese and write your version in the corresponding space in your ANSWER BOOKLET. You may take notes while you are listening
【参考答案】

许多年前，科学家们就已经知道人们需要维生素D。维生素D帮助身体吸收钙质，从而促进骨骼和牙齿的生长并使其坚固。研究显示，缺......

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