目前光纤传感器通常采用四种不同的干涉测量结构，以下（）属于上述四种结构。
A.迈克尔逊
B.马赫—泽德
C.萨格奈克
D.伽利略
参考答案：A, B, C
根据上下文，补全对话，将正确的序号填在横线上。
A. What would you like to drink?
B. They are dumplings.
C. Are you hungry, Jenny?
D. Yes, please.
E. My favourite fruit is apples.
Li Ming:1. __________
Jenny: Yes,I am very hungry. What are these(这些)?
Li Ming:2. __________
Li Ming's father: Would you like some dumplings?
Jenny: 3. ___________
Li Ming's mother;4. ___________
Jenny: Some milk, please.
Li Ming: Do you need some apples?
Jenny: Yes.5. ___________
颈椎病的手术指征是（）。
A．颈痛伴手麻木
B．头痛、头晕、眩晕
C．颈肩痛较重，手握力减退，X线片有骨棘生成，椎间隙狭窄
D．反复发作，症状严重，长期保守治疗法无效，有脊髓受压或瘫痪
E．颈肩痛。手部肌力减弱，头痛头晕，耳鸣
