下列哪些属于送变电施工安全设施。（）
A.孔洞盖板
B.临时提示遮栏
C.施工指挥员使用的指挥旗
D.防静电服
E.绝缘绳
参考答案：A, B, D, E
__________, I really believe that I’d prefer not to make any change now.
A．Considered all the possibilities
B．Taking all the possibilities into consideration
C．Taken all the possibilities into consideration
D．Giving all the possibilities
乳腺癌侵犯Cooper韧带，引起皮肤相应改变为（）。
A.橘皮样改变
B.皮肤溃疡
C. * * 内陷
D.局部水肿
E.酒窝征
