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问题
判断题
关税配额管理是以配额税率这个成本杠杆来实现对某些重要商品相对数量的限制。 ( )
答案
参考答案：
对
补全对话，情景问答
给下列的问句选择合适的答语。
( ) 1. Is his home far from here?
( ) 2. Thank you.
( ) 3. Where is your school?
( ) 4. How do you get there?
( ) 5. Where are you going?
A. You're welcome!
B. I'm going to the bank.
C. It's next to the science museum.
D. Yes, it is.
E. I get there by plane.
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单项选择题
机车运送物料时，列车的制动距离不得超过（）m。
A.30
B.40
C.50
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