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【简答题】
遇自动闭塞区间（）时，无需向司机交付调度命令。
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举一反三
【单选题】Pick out the appropriate expressions from the eight choices below and complete the fol lowing dialogues by blackening the corresponding letter on the Answer Sheet Ⅰ.
A.
I was held up by the traffic jam.
B.
That's a good price.
C.
I think so.
D.
If you run, you might catch it.
E.
Thank you very much.
F.
Nobody like this.
G.
Yes, he will.
H.
I do some running every morning. Hoe: What do you do for exercise?David: ______
【多选题】企业发生的下列各项支出中,按规定可以用现金支付的有( )
A.
支付购买办公用品800元
B.
支付职工张某的医药费2000元
C.
支付购买设备的款项20000元
D.
支付张某出差的差旅费1000元
【多选题】企业发生的下列各项支出中,按规定可以用现金支付的有( )
A.
支付银行结算手续费800元
B.
支付职工朱某的医药费2000元
C.
支付购买设备的款项20000元
D.
支付张某出差的差旅费3000元
【单选题】I was on the highway when this car went past fol. Lowed by a police car. They ______ at least 150 kilometers an hour.
A.
should have been doing
B.
must have been doing
C.
could have done
D.
would have done
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