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问题 单项选择题

患者，女，60岁，确诊类风湿关节炎20余年，近年来出现干咳，活动后呼吸困难，肺功能提示弥散功能障碍，最可能合并的疾病是（）

A.肺间质纤维化

B.肺结核

C.肺炎

D.胸膜炎

E.慢性心功能不全

答案

参考答案：A

单项选择题

以下基因中在神经细胞中有表达的是（）

A、糖酵解酶基因

B、晶体蛋白基因

C、胰岛素基因

D、血红蛋白基因
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单项选择题

MIDI enables people to use (61) computers and electronic musical instruments. There are actually three components to M1DI, the communications " (62) ", the Hardware Interface and a distribution (63) called "Standard MIDI Files". In the context of the WWW, the most interesting component is the (64) Format. In principle, MIDI files contain sequences of MIDI Protocol messages. However, when MIDI Protocol (65) are stored in MID! files, the events are also time-stamped for playback in the proper sequence. Music delivered by MIDI files is the most common use of MIDI today.

A．format

B．text

C．wave

D．center
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