回转式起重机使用前应注意：（）
①、检查卷筒上钢丝排列是否整齐；
②、吊臂起升仰角是否大于27度；
③、检查刹车情况及安全装置的可靠性；
④、关闭水密门
HOLIDAY HOMES IN MALLORCA
Holiday apartments in Mallorcan sailing and fishing port. Quiet even in summer season. Beautifully situated apartments with views of sea and mountains, yet near to shops and restaurants. Cars and bicycles for hire. Sailing and sports clubs nearby.
ITALY IN COMFORT
Luxury coach (carriage) tours of Italy, out of normal holiday season, 21 leisurely days to visit five Italian cities starting from London 1st September. The tours are guided by Professor Martin Davis, formerly Head of Italian Studies, London University. See the arts and culture of historic Italy.
KIBBUTZ IIOLIDAYS IN ISRAEL
Working holidays on a Kibbutz (co-operative farm) in Israel. All nationalities welcome for one to three months, if prepared to work morning with Kibbutz members: Accommodation, food and trips to historic sights all provided free -- you pay only for the special low-cost return flight.
TWO WEEKS ON A CARIB
A. the leisurely 21-day coach tour of Italy
B. the working holidays for 1～3 months on a farm
C. the splendid 14-day trip around the islands
D. the interesting 2-week stay in a luxurious hotel
克伦威尔在其施政纲领中说：“护国主为终身职务，与议会共同掌握立法权，与国务会议共同行使行政权……议会的议案必须经过护国主的批准才能生效。”这表明（）
①克伦威尔已蜕变为封建专制君主
②护国主实际操纵了立法权和行政权
③克伦威尔严格遵守了共和国原则
④克伦威尔以此建立了个人独裁统治
男性，32岁，既往健康，有烟、酒嗜好。1年前发现左上肢"红线"，伴肿硬，压痛。5个月前感觉右下肢凉、怕冷、麻木，行走200m出现小腿痛。近1个月症状加重，出现夜间疼痛，查体：右下肢发绀，皮温凉，右股动脉单性好，足背胫后动脉搏动未触及。
目前临床分期为（）
Metropolitan Museum of Art is located in New York City. It is one of the largest and most (1) art museums in the world.
In 1866 a group of Americans in Paris, France, gathered at a restaurant to (2) the American Independence Day. After dinner, John Jay, a (3) lawyer gave a speech proposing to create a "national institution and gallery of art. " During the next four years, he (4) American civic leaders, art collectors, and others to support the project, and in 1870 the Metropolitan Museum of Art was founded, but it was (5) in two different locations in New York City. In 1880 the museum moved to its present location in Central Park on Fifth Avenue. Many additions have (6) been built around this building. The north and south (7) were completed in 1911 and 1913, (8) Six additional wings have been built since 1975 to house the museum’s (9) collections, to expand gallery space and e
A. ever
B. never
C. as
D. since
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