2. 外语
  3. The primary digestive function of the throat and esophagus is ______ swallowed materials from the mouth to the stomach.

The primary digestive function of the throat and esophagus is ______ swallowed materials from the mouth to the stomach.

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问题 The primary digestive function of the throat and esophagus is ______ swallowed materials from the mouth to the stomach.
选项 A、to transport
B、transported
C、for transportation
D、that transported
答案A
解析
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托福（TOEFL）

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