单选题钢圈（coil）（）A一般使血管闭塞24～48小时B一般使血管闭塞2～4周，可按需制成不同形状和大小C较长时间阻塞肿瘤实质血供的外围性液态栓塞剂D机械性永久性栓塞物E液态高分子聚合物，可长期闭塞血管
单选题
钢圈（coil）（）
A
一般使血管闭塞24～48小时
B
一般使血管闭塞2～4周，可按需制成不同形状和大小
C
较长时间阻塞肿瘤实质血供的外围性液态栓塞剂
D
机械性永久性栓塞物
E
液态高分子聚合物，可长期闭塞血管
参考解析
解析：
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相关考题：
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钢圈（coil）（）A、一般使血管闭塞24～48小时B、一般使血管闭塞2～4周，可按需制成不同形状和大小C、较长时间阻塞肿瘤实质血供的外围性液态栓塞剂D、机械性永久性栓塞物E、液态高分子聚合物，可长期闭塞血管
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