下列不属于影响塑件收缩的主要因素是（）？
A、塑料的品种
B、塑件的特点
C、模具结构
D、工人操作熟练度
参考答案：D
The nurse is caring for a neonate with congenital clubfoot. The child has a cast to correct the defect. Before discharge, what should the nurse tell the parents
A. "The cast will be removed in 6 weeks. "B. "A new cast is needed every 1 to 2 weeks. "C. "A short leg cast is applied when the baby is ready to walk. "D. "The cast will be removed when the baby begins to crawl. "
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