【正文】 ” ) 1． 2． 3．√ 4．√ 5．√ 6． 7．√ 8． 9． 10． 五、問答及分析題 (共 30分，每小題 10分 ) 1．城市軌道交通對信號系統(tǒng)的要求是什么 ? 城市軌道交通，尤其是地下鐵道因其固有的特點，對其信號系統(tǒng)提出了如下要求：安全性要求高；通過能力大；保證信號顯示；抗干擾能力強；可靠性高；自動化程度高；限界條件苛刻。s national airliner. Garuda offers three nonstop flights between Beijing and Bali, and four each week between Beijing and Jakarta. There are daily flights from Guangzhou, in Guangdong province, and Shanghai to Jakarta as well. It takes from six to eight hours on a nonstop flight to reach Indonesia from China. Indonesia is home to more than 17,000 islands. Tourists can tour Yogyakarta to see Prambanam and Borobudur, two historical and religious sites, and explore the local handicraft markets. The base of a volcano, Bandung, which is also known as the Paris of Java, is ideal for adventure seekers. Many ecotourism destinations, such as Toba Lake in Sumatra, Tanjung Puting National Park in Kalimantan and Bunaken in Manado, are places the embassy official remends for tourists. Indonesia boasts worldclass surfing facilities along the shores of Sumatra down to Nusa Tenggara Islands. Recently, Lombok, a sister island east of Bali has gotten so much attention from Chinese travelers that some travel agencies are offering twin packages for Bali and Lombok. The best time to visit Bali is from May to October, when it doesn39。s banks. A real danger now looms of Greece exiting the euro, which might derail the global economic recovery and damage the longterm viability of the euro as a currency. However, such a tragedy is neither certain nor unavoidable. The EU should shoulder its responsibility to prevent the Greek crisis from overshadowing the fragile global recovery. As a major customer and supplier of the 28nation EU, and a responsible longterm holder of Eurobonds, China39。s illustration books. The reform and openingup brought in new concepts and ideas from the West to China, a country that had been closed to the West for nearly three decades. Fast development of economy, society and culture provided the writers and painters with a lot of inspiration to create new literature works and draw illustrations. China also imported large amounts of children39。第一個應答器初始化應答器和查詢器天線的位置，但是列車不知道自己在軌道上的運行方向；根據(jù)線路數(shù)據(jù)庫里應答器的順序，第二個應答器確定列車運行方向。 ( )，但均由線圈和接點系統(tǒng)兩部分組成。 二、單項選擇題 1． ( )屬于 ATS子系統(tǒng)，是 ATC的核心。 E．即列車運行超速防護或列車運行速度監(jiān)督，是保證行車安全、防止列車進入前方列車占用區(qū)段和防止超速運行的設備，實現(xiàn)列車運行安全間隔防護和超速防護。 A．終端設備 B．發(fā)射設備 C．傳輸設備 D．交換控制設備 E．計算機設備 四、判斷題 ( )L 車輛段聯(lián)鎖設備前期采用計算機聯(lián)鎖，近來均采用 6502電氣集中聯(lián)鎖。 (2)一旦列車連續(xù)經(jīng)過兩個應答器，就初始化它的位置參數(shù)，這樣列車“已定位”。s illustration books have a history of just 100 years and their development can be divided into four stages. From early 1900s to mid 1900s, a large number of books and magazines with illustrations appeared with the fast development of the modern publishing industry. The illustration arts at that t