系列型谱可由()构成。
A.系列构成图、产品品种表;
B.系列化设计、模块化设计;
C.产品参数表;
D.用文字说明产品的用途、性能、结构特性参数含义等。
参考答案:A, C, D
特发性黄斑裂孔Ⅱ期,选择手术方式()。
A.局部硅压术
B.局部硅压联合环扎术
C.玻璃体切割术
D.玻璃体切割术、内界膜剥除术
E.玻璃体切割术联合巩膜扣带术
用所给单词的适当形式填空。
1. You must think about _____ (person) safety.
2. The children might hurt _____ (them) if they walk alone.
3. Are you careful or _____ (care)?
4. The classroom is very _____ (noise) before the teacher came in.
5. He is so _____ (friend) to others.