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投资者买卖ETF须用A股账户，投资者申购、赎回须用A股账户或基金账户。 ( )
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男性，18岁，反复午后发热1个月，体温37.3～37.8℃，疲乏无力，消瘦。近1周来咳嗽，偶尔咯血性痰，夜间盗汗。无胸痛、气短。外院X线检查见右锁骨上见斑片状阴影。痰结核菌检查阴性。 为确定诊断应做下列哪项检查
Text 2 Amphibious vehicles, those that can move on both land and water, have been in use for a number of years, but while most of them were fairly fast on land, they moved quite slowly when they were functioning as boats. The only truly amphibious vehicle that can move with equal ease on both land and water is the hovercraft (气垫船). The hovercraft is the invention of an electronics engineer named Christopher Cockerell. Cockerell’s hobby was sailing and he was interested in the problem of reducing the friction of water on the body of a boat, and hit on the idea of designing a boat which would travel on a cushion of air. The air cushion under a hovercraft is produced by a large fan which blows air downwards between the craft and the water or ground, and so lifts up the craft. The air is main-rained at higher than atmospheric pressure by a flexible rubber "skirt" around the bottom edge of the hovercraft, preventing leakage of air from the cushion. Because the hovercraft floats on the air cushion with no contact between the craft and the surface below, it can travel over flat, rough ground or water with ease. Hovercraft are usually driven by air screws like propellers (螺旋桨), which face back-wards and "push" the craft forwards, and can be turned to direct the hovercraft. Since there is no propeller dipping below the craft, hovercraft can travel up slopes out of the water, or land on beaches. Cockerell’s Air Cushion Vehicles, or ACVs, are now familiar to everyone and like all inventions, they have been improved upon. British Sea speed hovercraft have been carrying passengers and cars across the English Channel since 1968. They now have a "stretched" version of their Mountbatten Class hovercraft which can carry up to 60 cars and 416 passengers between Britain and France in a little over half an hour. A new, large-sized hovercraft, designed and built in France, called the Sedam N500 of Naviplane, has now goneinto service. The 155 tonne N500 is 50 metres long (162 feet) and 23 metres wide (76 feet) and can carry 65 cars, plus five coaches, together with 400 passengers. When the sea conditions are ideal the N500 can reach 112 kph (70 mph). A variation of the hovercraft principle is the sidewall ACV, which is more economical than the flexible skirt models, and easier to control, but it cannot be used on land. The United States Navy have been experimenting with warships based on the sidewall principle, and some of these may well reach a speed of 160kph (100mph). Which of the following is NOT true according to the passage
根据席位的报盘方式的不同，可以分为有形席位和无形席位。( )
Directions: Read the following text. Choose the best word or phrase for each numbered blank and mark A, B, C or D on your ANSWER SHEET. Text It’s official that married people are healthier, or at least they think they are. An American survey of (26) 100 000 people shows that, despite changing social (27) in society, there is a (28) between being married and being (29) . One reason could be that people (30) physical, mental or emotional problems are less likely to marry in the first (31) , but married people also benefit (32) greater support from family and friends and this (33) their health. Divorce and bereavement increase stress, as well as affecting many people (34) . Married people are less likely than single people to smoke, drink heavily or drive (35) they have been drinking. They are also (36) likely to wear seat belts in a car and more married people (37) safety devices in their homes. All of (38) reduce the chances of disease or injury. Single people, by contrast, (39) to lead less organized lives. They take less care of (40) they eat and when they eat it. (41) it seems that the best advice is get married, but make (42) you find the right partner. (43) you get it wrong, the stress of a divorce (44) mean your health gets worse than (45) you were single.
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