动车组:指运行速度在()公里及以上的列车。
A. 200
B. 220
C. 250
D. 300
"世界未来的竞争,就是()的竞争"
A. 知识产权
B. 人才
C. 科技
D. 文化
为方便旅客和便于工作,凡北京站和上海站始发的各次特、直快列车车厢号均()。
A. 小号在前、大号在后
B. 大号在前,小号在后
C. 无顺序安排要求
D. 由铁道部定
The most important information to be obtained from a barometer is the ().
A. difference between the reading of the two pointers,which shows wind direction
B. last two figures of the reading of the pointer,such as 87,76,or 92
C. present reading of the pressure,combined with the changes in pressure observed in the recent past
D. weather indications printed on the dial(such as cold,wet,eetc.)under the poin