A．Having managed museum affairs.

　　B．Having organized large art events.

　　C．Having taught art college students.

　　D．Having worked as an art manager.

　　解析：选B　细节理解题。根据文中的"The successful candidate will have experience of managing complex and large­scale public art projects"可知，这个岗位要求应聘者负责过大型的公共艺术项目，即组织过大型的艺术活动。

　　22．Why are black candidates more likely to be chosen?

　　A．To guarantee more options.

　　B．To show they haven't racial discrimination.

　　C．To have a balanced staff structure.

　　D．To increase the competition among applicants.

　　解析：选C　细节理解题。根据最后一段"We particularly welcome applications from black and minority ethnic candidates as they are under­represented within UCL at this level"可知，学校该级别的员工中黑人和少数民族群体的人数较少，其代表性不足，故他们被雇用的可能性更大，因为该大学希望其员工结构更加均衡。本题的解题关键在于理解under­represented"代表人数不足的，代表人数低于适当比例的"。

　　23．What type of writing is this passage?

　　A．An introduction to UCL.

　　B．A guide to UCL.

　　C．An activity ad.

　　D．A job ad.

　　解析：选D　推理判断题。根据文章内容可知，本文是一则伦敦大学学院的招聘广告，招聘职位是Public Art Manager，故选D。

　　B

　　Elon Musk is a man of big ambition. He says his goal is to save humanity. And as strange as that sounds, the South African­born, Canadian­American inventor might actually be doing it.

On December 22nd, SpaceX, the company Musk founded, successfully launched its reusable Falcon 9 rocket. The moment