画出三相变压器Y，d11接线组的相量图和接线图。
参考答案：
肠结核后期常见并发症是（）。
A.急性穿孔
B.播散性肺结核
C.结核性腹膜炎
D.肠梗阻
E.肠出血
22. Jason didn’t turn up yesterday, because he was out on business. We all felt sorry ___ him.
A．without
B．For
C．except
D．To
