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【简答题】
试用曲线表示说明公共物品的市场均衡问题。
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反馈参考答案：
举一反三
【单选题】Most people usually traveled by ship and train which are driven by steam engine. It played an important part in many kinds of vehicles several scores of years ago. Who invented steam engine and what u...
A.
measure the work his engine could do
B.
tell people how powerful his engine was
C.
lift a 3300-pound weight
D.
both A and B
【单选题】How do most people usually listen to music?
A.
On only one plane at any given moment.
B.
On all three planes at the same time.
C.
Without paying enough attention.
D.
Without understanding what they are doing.
【单选题】Passage One (Questions 1 to 4 are based on Passage One.) [音频] 1. What do most people usually do in office?
A.
Always getting to work on time.
B.
Being very busy.
C.
Doing the job in an earnest way.
D.
All of the above.
【单选题】What do most people usually do to get rid of headaches?
A.
Take medicine.
B.
Try to fall asleep.
C.
Perform relaxing,exercises.
D.
Try to relieve pressure on the head.
【判断题】Most people usually listen to music on all three planes at the same time.
A.
正确
B.
错误
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