患者男性，45岁，十年前外伤后曾静脉输血治疗，近期持续发热，咳嗽，咳痰，经治疗无明显
题型：多项选择题 A3/A4型题
问题：
患者男性，45岁，十年前外伤后曾静脉输血治疗，近期持续发热，咳嗽，咳痰，经治疗无明显好转，伴有全身不适，肌肉酸痛，可触及颈部、腹股沟部淋巴结肿大，皮肤粘膜出现紫红色"葡萄样"结节。
为进一步明确诊断，需要哪些检查（）
A.梅毒抗体检查
B.肥达反应
C.外斐反应
D.钩端螺旋体凝集溶解试验
E.HIV抗体检查
F.免疫功能检测
题型：多项选择题 A3/A4型题
The temperature of the sun is over 5000 degrees Fahrenheit at the surface, but it rises to perhaps more than 16 million degrees at the center．The sun is so much h
otter than die earth that matter can exist only as a gas, except at the core．In the core of the sun, the pressures are so great against the gases that, despite the high temperature, there may be a small solid core．However, no one really knows, since the center of the sun can never be directly observed．
Solar astronomers do know that the sun is divided into five layers or zones．Starting at the outside and going down into the sun, the zones are the corona, chromosphere, photosphere, convection zone and finally the core．The first three zones are regarded as the sun's atmosphere．
But since the sun has no solid surface, it is hard to tell where the atmosphere ends and the main
body of the sun begins．
The sun's outermost layer begins about 10000 miles above the visible surface and goes outward for mllions of miles．This is the only part of the sun that can be seen during an eclipse（日食） such as the one in February 1979．At any other time, the corona can be seen only when special instruments are used on cameras and telescopes to shut out the glare of the sun's rays．
The corona is a brilliant, pearly white, filmy light, about as bright as the full moon．Its beautiful rays are a sensational sight during an eclipse．The corona's rays flash out in a brilliant fan that has wispy spikelike（一束束穗状） rays near the sun's north and south poles．The corona is thickest at the sun's equator．
The corona rays are made up of gases streaming outward at tremendous speeds sad reaching a temperature of more than 2 million degrees Fahrenheit．The rays of gas thin out as they reach the space around the planets．By the time the sun's corona rays reach the Earth, they are weak and invisible．
小题1:Matter on the aim can exist only in fee form of gas because of the sun's ___．
A．size
B．age
C．location
D．temperature小题2:All of the following are parts of the sun's atmosphere EXCEPT the ___．
A．corona
B．chromosphere
C．photosphere
D．core小题3:According to the passage, as the corona ra5,'s reach -die plaasts, they become ___．
A．hotter
B．clearer
C．thinner
D．stronger小题4:Which of 'die following do the paragraphs following the passage most likely discuss?
A．The remaining layers of the sun．
B．The evolution of the sun to its present form．
C．The eclipse of February 1979．
D．All the above．