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【单选题】
波长为550nm的单色光垂直入射于光栅常数为2000nm的平面衍射光栅上，可能观察到的光谱线的最大级次为A.
2
B.
3
C.
4
D.
5
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反馈参考答案：
举一反三
【单选题】依据《浙江省建设工程计价规则》( 2018 版),规费中社会保险费包括哪些内容?以下说法正确的是 。
A.
社会保险费包括养老保险费、失业保险费、医疗保险费、生育保险费、财产保险费
B.
社会保险费包括养老保险费、失业保险费、医疗保险费、财产保险费、工伤保险费
C.
社会保险费包括养老保险费、失业保险费、医疗保险费、生育保险费、工伤保险费
D.
以上都不对
【单选题】What is the passage mainly about?
A.
The universal value of the world heritage in Liverpool
B.
The exciting experience of the author in Liverpool
C.
The special cultural atmosphere of Liverpool
D.
The beautiful historic sites of Liverpool
【单选题】According to the professor, what was the effect of using Latin as a universal language of scholarship?
A.
It facilitated communication among intellectuals in many countries.
B.
It made Rome the capital of the world during the Renaissance.
C.
It caused class distinctions to be apparent throughout Europe.
D.
It created an environment in which new ideas were suppressed.
【简答题】身体素质强化对于预防损伤很重要,需要强化的身体素质有
【简答题】(d) What criteria would you use to assess whether Universal is an ‘excellent’ company? (5 marks)
【简答题】What are the similarities and differences between the protective jurisdiction and universal jurisdiction?
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