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【简答题】
设直线l过点P（-3，3），且倾斜角为 5 6 π （1）写出直线l的参数方程； （2）设此直线与曲线C： x=2cosθ y=4sinθ （θ为参数）交A、B两点，求|PA|?|PB|
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举一反三
【单选题】What was the initial impression that people had of Mr. Darcy?
A.
He was a welcome guest and people liked him.
B.
He was a disagreeable man and people didn't like him.
C.
He was rude to everyone he met.
【单选题】According to the professor, what was the initial problem with the restaurant?
A.
The lights were too bright.
B.
The atmosphere was not exciting.
C.
The noise spilled into the street.
D.
There were too many customers.
【单选题】What was the initial term for human resource management?
A.
Person Management
B.
Personnel Department
C.
People Management
D.
Human Management
【单选题】What was the initial attitude of western pharmaceutical manufactures towards China?
A.
Having some hesitation
B.
Rushing to China to open an office to sell their products
C.
Creating some joint ventures.
D.
Doing some clinical trials in China.
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