后张法预应力筋的张拉程序正确的有： (  ) 。

A、<span style="FONT-FAMILY: &#39;Times New Roman&#39;,&#39;serif&#39;; FONT-SIZE: 14px"><img title="5605814556174976" alt="捕获1.png" src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/ueditor/jsp/upload/image/20160428/1461831209066036902_捕获1.png"/></span>

B、<img title="9370560585551271" alt="1.png" src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/ueditor/jsp/upload/image/20160428/1461831261914078985_1.png"/>

C、<img title="5138235886230113" alt="2.png" src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/ueditor/jsp/upload/image/20160428/1461831298868014188_2.png"/>

D、<img title="14880311071435092" alt="3.png" src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/ueditor/jsp/upload/image/20160428/1461831332958039535_3.png"/>