2. 外语
  3. Jet lag happens when your body’s time clock becomes confused.

Jet lag happens when your body’s time clock becomes confused.

admin2012-03-26  43
问题 Jet lag happens when your body’s time clock becomes confused.
选项
答案乘坐飞机时，当体内的生物钟变得紊乱，时差给人体带来不良的现象就会产生。
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成人本科学位英语

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