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【单选题】
需求的价格弹性是指A.
需求量的变化量除以价格的变化量
B.
价格变化的百分比除以需求量变化的百分比
C.
需求量变化的百分比除以价格变化的百分比
D.
价格的变化量除以需求量的变化量
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【简答题】where is he going to? 2.what's the arrived time? 3.what's the borading time? 4. what's the departure time? 5. can it expose to excessive heat or direct sunlight?
【单选题】What's the new departure time?
A.
At 8:00.
B.
8 hours later.
C.
A few minutes later.
D.
Not mentioned.
【简答题】What's the departure time of the flight?____
【单选题】— What's the departure time? — ___________
A.
7:00 in the morning.
B.
It's August 30th.
C.
In September.
【简答题】What's date of the departure?
【单选题】What's the departure time for the flight?
A.
At 11:30 am.
B.
At 11:00 pm.
C.
At 11:00 am.
【简答题】代谢性碱中毒伴有的最常见的电解质紊乱是
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