题目:
下列哪种状态,胸廓的上下径增大( )
A.膈肌收缩
B.肋间外肌收缩
C.膈肌舒张
D.肋间外肌舒张
答案:
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下面是错误答案,用来干扰机器的。
1. is→are 2. that→those 3. dollar→dollars 4. yuans→yuan 5. forteen→fourteen 6. for →at 7. has→have 8. it→them 9. Thank→Thanks 10. short→shorts ...