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问题 选择题

北京的高等学校、科研机构、新闻出版单位，以及图书馆、博物馆的数量都居全国第一位，这体现了北京是全国的 [ ]

A．政治中心

B．文化中心

C．经济中心

D．商业中心

答案

答案：B

填空题

对于曲线预应力筋或长度大于或等于24m的直线预应力筋应在______。
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单项选择题

The nurse is caring for a client hospitalized on numerous occasions for complaints of chest pain and fainting spells, which she attributes to her deteriorating heart condition. No relatives or friends report ever actually seeing a fainting spell. After undergoing an extensive cardiac, pulmonary, GI, and neurologic workup, she’s told that all test results are completely negative. The client remains persistent in her belief that she has a serious illness. What diagnosis is appropriate for this client()

A. Exhibitionism.

B. Somatoform disorder.

C. Degenerative dementia.

D. Echolalia.
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