SEOUL, SOUTH KOREA U.S. President Donald Trump's decision to withdraw from the Iran nuclear agreement is not expected to derail diplomatic momentum to reach a deal to end North Korea's nuclear weapons program, but it could complicate the negotiation process, analysts say. Trump on Tuesday announced that the United States is ending its participation in the 2015 Joint Comprehensive Plan of Action (JCPOA) that lifted sanctions on Iran in exchange for Tehran limiting its nuclear program, and would re-impose U.S. economic sanctions on Iran. The agreement was negotiated by the administration of Trump's predecessor, President Barack Obama, and involved five other world powers; Great Britain, France, Germany, China and Russia. Trump's National Security Adviser John Bolton said the U.S. decision to re-impose sanctions on Iran will set a higher standard for North Korea nuclear talks by sending, "a very clear signal that the United States will not accept inadequate deals." The U.S. policy reversal on Iran should not seriously impede diplomatic progress underway with North Korea, said Victor Cha, a noted Korea scholar with the Center for Strategic and International Studies in Washington. "In terms of how the North Koreans would take it, I don't think they'd take it one way or the other. I don't think they'd see it as negative or positive because they think they're different from anybody else anyway. They think they're a very special case," Cha said at a CSIS conference this week. While the Iran deal limited that country's efforts to develop a nuclear bomb, North Korea already possesses 20 to 60 nuclear warheads, according assessments by the U.S. Central Intelligence Agency and the Defense Intelligence Agency, and between 40 to 100 nuclear development facilities, according a report from the RAND Corporation security research organization. But apprehension over whether future U.S. presidents would uphold a nuclear deal reached by Trump could reinforce the North Korean demand for early concessions. John Delury, a North... According to the above context, choose the correct option to answer the following question. Question: What does Cha think about the US policy reversal on Iran? Options: A. he thinks positively B. not enough information C. he thinks negatively D. he doesn't think it will affect them either way
D

For years, Aimee Lind, a librarian at the Getty Research Institute, has been struggling with ways to make architecture archives more accessible to users. To help solve this problem, she co-founded the California Architecture Archives Network (or CalArchNet) with her Cal Poly SLO colleague Jessica Holada. Together they have organized a series of one-day mini-conferences designed to foster dialogue and collaboration among librarians, archivists, and curators at California institutions that house architecture archives. The goal of these semiannual meetings is to create a space for convergence among professionals who intersect with architectural archives in different ways. Architecture archives, often containing large drawings and scale models, present unique problems due to their size and fragility. CalArchNet participants are interested in improving the overall user experience for visitors to the archives by looking for solutions to obstacles to access. This space for an informal exchange of ideas provides an opportunity to be transparent about the challenges repositories face when managing and processing architecture holdings, as well as encourages investigation and experimentation into ways new technologies may help to solve accessibility issues, such as improved interaction with digitized collections via the IIIF protocol or 3D-scanned facsimile models and virtual walk-throughs. October 27 marked the third meeting of CalArchNet, held at the Palm Springs Art Museum, Architecture and Design Center, with representatives from 13 institutions in attendance. Topics discussed included historic site preservation research methodology, leveraging statewide resources to enhance discovery of collections, security considerations, GIS mapping technologies, and the use of linked open data to make connections between collections. The day concluded with a curator-led tour of the exhibition Albert Frey and Lina Bo Bardi: A Search for Living Architecture. If you're an archivist, librarian, or curator working with architecture... According to the above context, choose the correct option to answer the following question. Question: What is probably true about Jessica Options: A. not enough information B. She does not want people to have access C. She is not interested in architecture D. She is a librarian too
D

SEOUL The annual U.S.South Korea joint military exercises currently underway have historically been a very public demonstration of force intended, in part, to counter North Korea's aggressive nuclear and missile tests. But with looming diplomatic summits aimed at reaching a deal to end the North's nuclear program, media coverage of the drills has so far been limited. This week, the U.S. Second Infantry Division held a public tree planting ceremony at Camp Casey in South Korea, near the inter-Korean border. "It is my belief that this tree, like those that have come before it, shall symbolize the roots that bind us together, and to our past in an enduring way," said General Jon Howerton, the deputy commander of the U.S. 2nd Infantry Division, at the event. The journalists attending the tree ceremony were also permitted to watch a shooting competition to determine the best marksmen in the participating U.S. and South Korean divisions. The Camp Casey event was one of the few joint military training activities that news organizations have, so far, been allowed to cover, and it illustrates how the United States and South Korea are downplaying the offensive component of this year's combined exercises. "This is clearly in order to send a signal to North Korea that South Korea and the United States are not willing to escalate the situation any further," said Go Myong-Hyun, a North Korea analyst with the Asan Institute for Policy Studies in Seoul. This year's Foal Eagle and Key Resolve combined military exercises are similar in scale to past drills, with more than 23,000 U.S. troops and 300,000 South Korean forces engaging in joint battlefield maneuvers, and responding to computer-simulated attacks from North Korea. But the start of the drills was delayed this year at South Korea's request to set a peaceful tone for the Pyeongchang Winter Olympics in the South and to facilitate the North's participation in the games. According to the above context, choose the correct option to answer the following question. Question: When did The US Second Infantry Division hold a tree planting service? Options: A. after the annual joint exercises B. during the annual joint exercises C. before the annual joint exercises D. not enough information
B