Smooth muscle is also called visceral muscle.
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The quadriceps muscle has three components.
A. 对
B. 错
In an isotonic contraction, a muscle shortens.
A. 对
B. 错
Match the term for muscle action in Column I with its meaning in Column II.
商品仓储活动的重要意义之一就在于（ ）
A. 降低生产成本
B. 有效提高商品周转率
C. 平衡运输的负荷
D. 满足顾客需求
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