A. the volunteers do B. to support their further sessions of experiment C. because the life there can be very boring D. make peo

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问题 A. the volunteers do
B. to support their further sessions of experiment
C. because the life there can be very boring
D. make people overeat
E. because she was her own boss
F. after passing a high-protein test
Volunteers have to get prepared for the time in the calorimeter______.

选项

答案C

解析 本题需要一个深层次的推理,结合第五段可以看出,在做志愿者期间,有规定的饮食,要严格按照各种要求进行活动,而且这一过程要重复若干次,确实很单调、枯燥。
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