常见的变压器有哪些？
参考答案：
电力变压器、特殊用途变压器。仪器用变压器、试验变压器和控制变压器。
—Did you meet our English teacher in the library?
— _______. I met her in the office. [ ]
A. Yes, I did
B. No, I didn't
C. Yes, I didn't
D. No, I did
霍纳综合征由下列哪种病因引起
A．眼交感神经麻痹
B．眼交感神经兴奋
C．眼副交感神经麻痹
D．眼副交感神经兴奋
E．动眼神经麻痹
