题目内容

警冲标用来指示机车车辆的____,防止机车车辆的侧面冲撞。

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1. They met m the 1980 % when Mr. Fagan, a jazz aficionado took his dancers to New York clubs to hear Mr. Marsalis play.

A. expert
B. professional
C. enthusiast
D. director

列车和调车车列在站内运行所经过的径路,称为____。

2. I tried to understand the choreography as well as I could with my level of sophistication, which was very little at the time.`

A. arrangement of steps
B. dancers
C. music
D. formation

3. I tried to understand the choreography as well as I could with my level of sophistication, which was very little at the time.

A. wisdom
B. knowledge
C. experience
D. delicacy