单项选择题

Questions 29 to 31 are based on the passage you have just heard.

A．They found ways to speed up the reproduction of bald eagles.
B．They developed new types of feed for baby bald eagles.
C．They explored new ways to hatch baby bald eagles.
D．They brought in bald eagles from Canada.
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单项选择题
A．She will do her best if the job is worth doing.B．She prefers a life of continued exploration.C．She will stick to the job if the pay is good.D．She doesn’t think much of job-hopping.
A．She will do her best if the job is worth doing.
B．She prefers a life of continued exploration.
C．She will stick to the job if the pay is good.
D．She doesn’t think much of job-hopping.
单项选择题
A．Fifty underground stations were made waterproof.B．A flood wall was built.C．An alarm system was set up.D．Rescue teams were formed.
A．Fifty underground stations were made waterproof.
B．A flood wall was built.
C．An alarm system was set up.
D．Rescue teams were formed.
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