男,27岁,日晒后暴露皮肤出现皮疹,对称性关节痛,查血小板下降,尿蛋白阳性,血ANA

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问题:

男,27岁,日晒后暴露皮肤出现皮疹,对称性关节痛,查血小板下降,尿蛋白阳性,血ANA(+),最可能的诊断是()

A.日光性皮炎

B.剥脱性皮炎

C.系统性红斑狼疮(SLE.

D.类风湿性关节炎

E.干燥综合征

考点:广西住院医师风湿免疫科综合练习风湿免疫科综合练习题库
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“生物圈‖号”实验没有成功的主要原因(  )

A.设计得过于简单,没有真正达到生物圈运行的基本条件

B.人类还缺乏对生物圈的了解

C.“生物圈‖号”中的消费者太多

D.人类还无法模拟出与人类生活的地球类似的环境条件

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周围神经系统的有髓神经纤维,一个施万细胞包裹一条轴突。

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关于宇宙中的天体的磁场,下列说法正确的是 [ ]

A.宇宙中的许多天体都有与地球相似的磁场

B.宇宙中的所有天体都有与地球相似的磁场

C.指南针在任何天体上都能像在地球上一样正常工作

D.指南针只有在磁场类似于地球磁场的天体上才能正常工作

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Churchill's full name was Winston Leonard Spencer Churchill. He was born in 1874. He was educated at Harrow School and the Royal Military College, Sandhurst.

In 1900 Churchill was elected a member of parliament .As First Lord of the Admiralty , in 1911, he was responsible for strengthening the British navy.

During World War I, he still remained a member of parliament, but he resigned from his post in the British navy, and became a soldier again, fighting in France. In 1917, however, he became Minister of Munitions . In this job, he encouraged the development and use of the tank, which was then a new weapon. After the war, Churchill held several government posts.

From 1931 to 1939, he was only a member of parliament. He had fallen into dislike because of his militant (war-loving) attitude. Even his closest friends discouraged him from seeking higher office. But when World War II started in 1939. Churchill returned to his former job as First Lord of the Admiralty.

In May 1940, he became Prime Minister. Throughout the war, Churchill showed great strength and energy. He worked for long periods with little sleep and traveled many thousands of miles. By the courage and determination expressed in his speeches, he inspired the people of Britain to keep on fighting. His speeches also gave hope to people in parts of Europe occupied by enemy forces.

In the general election at the end of the war, the Conservative Party, of which he was leader, was defeated. But he became Prime Minister again in 1951. He resigned as Prime Minister in 1955. However, he remained a member of parliament until 1964. Some time later, in 1965, he died.

小题1:Before World War I, Churchill worked for his country as ____.

A.headmaster of Harrow School

B.a leader of the Britain Navy

C.a leader of the Conservative Party

D.Prime Minister of Britain小题2:How many times was Churchill elected Prime Minister?

A.One.

B.Two.

C.Three.

D.Four.小题3:What can we learn from Para. 4?

A.In 1938 Churchill left the parliament.

B.Churchill's closest friends were against his attitude toward war.

C.Churchill's closest friends always inspired him to seek higher office.

D.Churchill and his closet friends served in the army before World War II.小题4:We can know all the following from the text EXCEPT that ____.

A.Churchill gave up as Prime Minister in 1955

B.Churchill once became a soldier, fighting in France

C.Churchill's speeches encouraged the British people to keep on fighting

D.Churchill led his army to fight bravely and defeated the enemy in World War I

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两个共点力的合力为F,如果它们之间的夹角θ固定不变,使其中一个力增大,则(  )

A.合力F一定增大

B.合力F的大小可能不变

C.合力F可能增大,也可能减小

D.当0°<θ<90°,合力F一定减小

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