造成100万元以上500万元以下直接经济损失，未造成其他影响和损失的铁路交通事故，列

此题要求改正所给短文中的错误。对标有题号的一行作出判断：如无错误，在该行右边横线上画一个勾(√)；如有错误（每行只有一个错误），则按下列情况改正： 此行多一个词：把多余的词用斜线（\）划掉，在该行右边横线上写出该词，并用斜线划掉。

此行缺一个词：在缺词处加一个漏写符号（∧），在该行右边横线上写出该加的词。

此行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。

注意：原行没有错的不要改。

Lucy was one of my best friend at high school.

At that time, we often spend time together.

Thanks to his great help, I made much progress

of my study. Last year, she decided to study abroad.

That is to say, we would no longer see and

talk with each other for long time.

After her leaving, I prepared a gift to show my best

wishes to her. She said it was the most best gift she had

ever had. From then, we’ve kept in touch with each

other through E-mails. I look forward to see her again.

患者男性，查体见颈静脉怒张，其不可能是

A．右侧心力衰竭
B．心包积液
C．缩窄性心包炎
D．高血压
E．上腔静脉阻塞综合征

φ39.7mm以上套管，可采用（）方式，并配合以大排量。

A、正冲砂

B、反冲砂

C、冲管冲砂

D、正反冲砂

水喷雾系统测试时，距水力警铃3m远处警铃声强不应小于（）。

A.50dB

B.65dB

C.70dB

D.80dB

大型机组运行状态在线监测仪，按一套（）回路统计。

A.控制

B.在线质量分析

C.特殊

D.报警联锁