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【单选题】
What is the main idea of the article?A.
Our internal clock mechanism doesn' t like rest, so keeping our routines is the key to good health.
B.
We need longer holidays as we still feel tired after holidays.
C.
There is a biological reason why people feel uncomfortable during holidays.
D.
Holidays are part of our lives though we don' t actually enjoy them.
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举一反三
【单选题】下列腹股沟斜疝与腹股沟直疝的鉴别点不包括
A.
腹股沟斜疝多见于儿童及青壮年
B.
腹股沟直疝可进阴囊
C.
腹股沟斜疝回纳疝块后按压深环不在突出
D.
腹股沟直疝嵌顿机会较少
E.
腹股沟直疝外形呈现半球形