审核意见应尽可能具体地指出估价报告存在的问题,审核结论( )。
A. 可以出具
B. 适当修改后出具
C. 拒绝出具
D. 应重新估价
E. 应重新撰写
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Optical fiber is a cylindrical dielectric optical waveguide structure composed of ().光纤是由()构成的圆柱介质光波导结构。
A. Core纤芯
B. Cladding包层
Coating涂敷层
D. buffer layer缓冲层
At present, the core and cladding materials of most optical fibers for communication are ( ).目前,大多数通信用光纤的纤芯和包层的组成材料是() 。
A. 多组分玻璃
B. 石英
C. 石英和塑料
D. 塑料
Have you ever tried to beat the fear in your heart?
What are your suggestions to a young man who gives up at the last minute when he is going to ask a girl on a date?