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【单选题】
关于热补偿，下列说法错误的是(??? )。A.
直埋敷设热水管道，经计算容许，宜采用无补偿敷设方式
B.
采用套筒补偿器时，应汁算各种安装温度下的补偿器的安装长度，并保证管道在可能出现的最高、最低温度下，补偿器留有不小于10mm的补偿长度
C.
采用波纹管轴向补偿器时，管道上应安装防止波纹管失稳的导向支座
D.
充分利用管道的转角等进行自然补偿
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