题目内容
（请给出正确答案）
A、to provide methionine
B、to synthesize tetrahydrofolate
C、to synthesize purine nucleotides
D、to synthesize pyrimidine nucleotides
E、to supply methyl group
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【填空题】AV Clip 16: Debate on DietsAV 16 Debate on diets.avi Watch the video clip three times and complete each statement in no more than 6 words according to the information from the video clip. 1. There is still a debate over ____________________________________ to provide weight loss. 2. The _____________________________________emphasizes meat, fish, chicken,eggs with just a few vegetable. 3. A Mediterranean diet includes lean protein, vegetables along with________________________. 4. Perhaps it is most surprising that low carb diet actually lowers__________________________. 5. Low carb diet works by lowering ____________________________________________. 6. Researchers are equipped to know that the most effective diet is the one that _____________________________________________.
A、nothing
B、$100 a week
C、$50 a week
D、$40 a week
A、advanced cancer
B、pregnant women
C、people suffer from fever
D、people suffer form long-time hunger
E、normal adult
A、norepinephrine
B、epinephrine
C、dopamine;
D、Phe
E、melanin
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