单项选择题

A．In order to elevate their nests.
B．In order to live more comfortably.
C．In order to avoid predators.
D．In order to make incubation easier.
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单项选择题
A．Interview some high school students.B．Finish their chemistry experiment.C．Write their lab reports.D．Find our professor Smith’s schedule.
A．Interview some high school students.
B．Finish their chemistry experiment.
C．Write their lab reports.
D．Find our professor Smith’s schedule.
单项选择题
A．They grow up to be funny and charming.B．They often have a poor sense of direction:C．They get less attention from their parents.D．They tend to be smart and strong-willed.
A．They grow up to be funny and charming.
B．They often have a poor sense of direction:
C．They get less attention from their parents.
D．They tend to be smart and strong-willed.
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