单项选择题

Passage One
Questions 26 to 28 are based on the passage you have just heard.

A．A controlled study.
B．A trial study.
C．An observational study.
D．A successful study.
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单项选择题
A．Work in this area is easy and relaxing.B．There are too many criminals and the work is challenging.C．The job is challenging and the pay is high.D．It is easy for him to find job after graduation.
A．Work in this area is easy and relaxing.
B．There are too many criminals and the work is challenging.
C．The job is challenging and the pay is high.
D．It is easy for him to find job after graduation.
单项选择题
A．Because she needn’t care the house.B．Because she needn’t to earn money.C．Because she wanted to get funny from art.D．Because she regarded art as her career.
A．Because she needn’t care the house.
B．Because she needn’t to earn money.
C．Because she wanted to get funny from art.
D．Because she regarded art as her career.
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