相似工况点
参考答案：
几何相似的风机，若对应工况点的性能参数满足相似定律，其对应的工况点就称为相似工况点。相似工况点效率相等。
下列与糖尿病相关的病变是（）。
A.视神经萎缩
B.白内障
C.虹膜睫状体病变
D.青光眼
E.视网膜脱离
Mr Smith ________ his wife and daughter ________ going to the Great Wall. [ ]
A. as well as; is
B. as well; are
C. as well as; are
D. as well; is
