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问题 单项选择题 B型题

患者男，50岁，主诉阵发性腹痛腹胀5小时，查体全腹膨隆，弥漫轻压痛，听诊可闻及气过水声，首先考虑的诊断为（）。

A.肠套叠

B.肠扭转

C.机械性肠梗阻

D.绞窄性肠梗阻

E.动力性肠梗阻

答案

参考答案：C

听力题

根据上下文和中文提示，用单词的适当形式填空，使文章完整，通顺。（每空限填一词）

What is your favorite cartoon? It may be    小题1: (困难的)for you to decide. But for the pianist Lang Lang, Tomand Jerry is the best one.

Lang Lang was born in 1982.When he was two      小题2: （岁）old, he saw Tom playing the piano. This was his      小题3:     （一）time to enjoy foreign music and it encouraged （鼓励）him to learn to play piano.

Lang   小题4:        （成为）a good piano student at there. Ever since, the boy has been doing better and better. His talent at the keyboard took him from Shengyang to the world. In 1997,the 15-year-old boy    小题5:      （学习）at a first-class American music college. Lang worked   小题6:    （努力）There and now is   小题7:       （著名的）for making facial expressions （面部表情）and moving around while playing the piano.

The road to success has never been easy. Lang’s father     小题8:   (停止)his job to look after him, while his mother stayed in Shengyang to make money.    小题9:  （然而）Lang thinks himself lucky and    小题10: （相信）he should give something back. He has helped the children in poor schools a lot.
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单项选择题

变换机端口可以分为半双工与全双工两类。对于100Mbps的全双工端口，端口带宽为（）

A、100Mpbs

B、200Mbps

C、400Mpbs

D、800Mpbs
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