5.What is the widespread confusion concerning dating?
A. Whether women should help pay for dates.
B. What women should do on a first date.
C. How both sides can forge their relationships.
D. When the new rules will be clarified.
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6.Why did the first guy seem angry with the author on a date?
A. He lost his wallet on their first date.
B. She was not romantically interested in him.
C. She regretted going out with him.
D. She didn't stop him paying for the dinner.
7.Why did she open her purse hastily on another date?
A. She didn't want to make him embarrassed.
B. She didn't want to give him a hint that she was romantically interested in him.
C. He didn't bring enough money to pay for the dinner.
D. She was willing to pay for the first date.
8.What does the text want to say?
A. Females should take the initiative to date someone they like.
B. It's beneficial to date someone at college.
C. Dating nowadays is no longer following the traditional dating patterns.
D. Female students should be more romantic.
资本存量的稳定状态是（）
A. △K=0
B. Y=F(k,l)=f(k)
C. I(投资)=sy
D. △I（新增投资）=0
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