题目详情
单选题 When forcefully exhaling, the respiratory muscles that contract and play a major role are _______
A. external intercostal muscles and diaphragm
B. External intercostal muscles and abdominal muscles
C. inferior oblique muscle and sternocleidomastoid muscle
D. abdominal muscles and pectoral muscles

学科:《研究生英语》
时间:2025-08-24 04:10:23
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