单项选择题 脑挫裂伤早期治疗的重点是( ) A．保持呼吸道通畅 B．防治肺部并发症 C．治疗脑水肿 D．纠正水、电解质平衡紊乱 E．抗感染

单项选择题 阻塞性通气不足是由于( ) A．肺顺应性降低 B．肺泡通气血流比例失调 C．非弹性阻力增加 D．肺泡扩张受限制 E．肺循环短路

未知题型 One of the strangest and most fascinating things about Scotland is the Loch Ness Monster. Some people believe in the monsters【B1】______Many do not! However, very important【B2】______people do believe there is some truth in the famous monster story: experts from Britains Royal Air Force, scientists from the Boston Academy of Applied Science and specialists from NASA, to【B3】______but a few! Loch Ness is an【B4】______lake in Northern Scotland. It is about twenty-four miles long and one mile wide, and【B5】______1,000 feet, which makes it very difficult for anybody to find and examine the monster. In fact the first【B6】______reports of people seeing the monster date from only about six years before the beginning of the Second World War. Since then there have been other【B7】______and photographs of the monster. Many of these photographs【B8】______silly jokes played on an unsuspecting public later. However, other photographs have amazed the most searching scientific minds. In fact, it seems certain that something does exist in the deep waters of the【B9】______lake. The most amazing photographs show a flipper — the flipper perhaps of a very large animal. From these photos British expert in animal life, Sir Peter Scott, who is also an artist, has【B10】______the picture of what he believes the monster might look like.【B1】