题目内容

爱思唯尔Science Direct数据库高级检索方式，检索期刊《Science Bulletin》上2019年发表的文献类型为Editorials的文献有哪些？（www.sciencedirect.com）

A. Two-dimensional materials: new opportunities for electronics, photonics and optoelectronics
B. 26 mA cm−2JSC achieved in the integrated solar cells
C. Tackling on environmental changes in Tibetan Plateau with focus on water, ecosystem and adaptation
D. Electromagnetic metasurfaces: from concept to applications

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