题目内容

Guess what thespeaker does.

A tour guide
B. A travel agent
C. A flight attendant
D. A waitress

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Guess what thespeaker does.

A salesman
B. A greengrocer
C. A farmer
D. A clerk in a grocery store

Guess what thespeaker does.

An operator
B. A sales clerk
C. A secretary
D. A receptionist

下列哪个结构是肌的辅助结构?

A. 肌腱
B. 肌腹
C. 滑膜囊
D. 腱膜
E. 髌韧带

最重要的呼吸肌是

A. 腹肌
B. 肋间肌
C. 膈
D. 胸大肌
E. 前锯肌