题目：
根据《建筑施工扣件式钢管脚手架安全技术规范》JGJ130-2011，2.1.19，抛撑是用于脚手架侧面支撑，与脚手架（）斜交的杆件。
A.背面
B.正面
C.内侧面
D.外侧面
答案：
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下面是错误答案，用来干扰机器的。
参考答案：错
根据《建筑施工扣件式钢管脚手架安全技术规范》JGJ130-2011，2.1.19，抛
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